Precalculus (6th Edition)
Precalculus (6th Edition)
6th Edition
ISBN: 9780134469140
Author: Robert F. Blitzer
Publisher: PEARSON
bartleby

Videos

Question
Book Icon
Chapter 8.4, Problem 62PE
To determine

To fill: The statement “What is a cryptogram”.

Expert Solution & Answer
Check Mark

Want to see the full answer?

Check out a sample textbook solution
Blurred answer
Previous
Chapter 8.4, Problem 61PE
Next
Chapter 8.4, Problem 63PE

Chapter 8 Solutions

Precalculus (6th Edition)

Ch. 8.1 - Check Point 1 Write the augmented matrix for the...Ch. 8.1 - Check Point 2 Use the matrix ...Ch. 8.1 - Check Point 3 Use matrices to solve the system:...Ch. 8.1 - Check Point 4 Use matrices to solve the system:...Ch. 8.1 - Check Point 5 Solve the system in Check Point. 3...Ch. 8.1 - Prob. 1CVCCh. 8.1 - Fill in each blank so that the resulting statement...Ch. 8.1 - Prob. 3CVCCh. 8.1 - Prob. 4CVCCh. 8.1 - Fill in each blank so that the resulting statement...
Ch. 8.1 - Fill in each blank so that the resulting statement...Ch. 8.1 - Prob. 1PECh. 8.1 - Prob. 2PECh. 8.1 - Prob. 3PECh. 8.1 - Prob. 4PECh. 8.1 - Prob. 5PECh. 8.1 - Prob. 6PECh. 8.1 - Prob. 7PECh. 8.1 - Prob. 8PECh. 8.1 - Prob. 9PECh. 8.1 - Prob. 10PECh. 8.1 - Prob. 11PECh. 8.1 - Prob. 12PECh. 8.1 - Prob. 13PECh. 8.1 - Prob. 14PECh. 8.1 - Prob. 15PECh. 8.1 - Prob. 16PECh. 8.1 - Prob. 17PECh. 8.1 - Prob. 18PECh. 8.1 - Prob. 19PECh. 8.1 - Prob. 20PECh. 8.1 - Prob. 21PECh. 8.1 - Prob. 22PECh. 8.1 - Prob. 23PECh. 8.1 - Prob. 24PECh. 8.1 - Prob. 25PECh. 8.1 - Prob. 26PECh. 8.1 - Prob. 27PECh. 8.1 - Prob. 28PECh. 8.1 - Prob. 29PECh. 8.1 - Prob. 30PECh. 8.1 - Prob. 31PECh. 8.1 - Prob. 32PECh. 8.1 - Prob. 33PECh. 8.1 - Prob. 34PECh. 8.1 - Prob. 35PECh. 8.1 - In Exercises 21-38, solve each system of equations...Ch. 8.1 - Prob. 37PECh. 8.1 - In Exercises 21-38. solve each system of equations...Ch. 8.1 - Prob. 39PECh. 8.1 - Prob. 40PECh. 8.1 - Prob. 41PECh. 8.1 - Prob. 42PECh. 8.1 - Prob. 43PECh. 8.1 - Prob. 44PECh. 8.1 - Prob. 45PECh. 8.1 - Prob. 46PECh. 8.1 - Prob. 47PECh. 8.1 - Write a system of linear equations in three or...Ch. 8.1 - Prob. 49PECh. 8.1 - Prob. 50PECh. 8.1 - Prob. 51PECh. 8.1 - Prob. 52PECh. 8.1 - Prob. 53PECh. 8.1 - Describe how to use row operations and matrices to...Ch. 8.1 - What is the difference between Gaussian...Ch. 8.1 - Prob. 56PECh. 8.1 - Prob. 57PECh. 8.1 - Prob. 58PECh. 8.1 - Make Sense? In Exercises 59-62, determine whether...Ch. 8.1 - Prob. 60PECh. 8.1 - Prob. 61PECh. 8.1 - Prob. 62PECh. 8.1 - Prob. 63PECh. 8.1 - Prob. 64PECh. 8.1 - Prob. 65PECh. 8.1 - Prob. 66PECh. 8.1 - Prob. 67PECh. 8.1 - Prob. 68PECh. 8.1 - Prob. 69PECh. 8.1 - Prob. 70PECh. 8.1 - Prob. 71PECh. 8.1 - Prob. 72PECh. 8.1 - Prob. 73PECh. 8.1 - Prob. 74PECh. 8.2 - Check Point 1 Use Gaussian elimination to solve...Ch. 8.2 - Check Point 2 Use Gaussian elimination to solve...Ch. 8.2 - Prob. 3CPCh. 8.2 - Check Point 4 Figure 8.5 shows a system of four...Ch. 8.2 - Prob. 1CVCCh. 8.2 - Prob. 2CVCCh. 8.2 - Prob. 3CVCCh. 8.2 - Prob. 4CVCCh. 8.2 - Prob. 5CVCCh. 8.2 - Prob. 1PECh. 8.2 - Prob. 2PECh. 8.2 - Prob. 3PECh. 8.2 - Prob. 4PECh. 8.2 - Prob. 5PECh. 8.2 - Prob. 6PECh. 8.2 - Prob. 7PECh. 8.2 - Prob. 8PECh. 8.2 - Prob. 9PECh. 8.2 - Prob. 10PECh. 8.2 - Prob. 11PECh. 8.2 - In Exercises 1-24, use Gaussian elimination to...Ch. 8.2 - Prob. 13PECh. 8.2 - Prob. 14PECh. 8.2 - Prob. 15PECh. 8.2 - Prob. 16PECh. 8.2 - Prob. 17PECh. 8.2 - Prob. 18PECh. 8.2 - Prob. 19PECh. 8.2 - Prob. 20PECh. 8.2 - Prob. 21PECh. 8.2 - Prob. 22PECh. 8.2 - Prob. 23PECh. 8.2 - Prob. 24PECh. 8.2 - Prob. 25PECh. 8.2 - Prob. 26PECh. 8.2 - Prob. 27PECh. 8.2 - Prob. 28PECh. 8.2 - Prob. 29PECh. 8.2 - Prob. 30PECh. 8.2 - Prob. 31PECh. 8.2 - Prob. 32PECh. 8.2 - 33. The figure shows the intersections of four...Ch. 8.2 - Prob. 34PECh. 8.2 - Prob. 35PECh. 8.2 - Prob. 36PECh. 8.2 - Prob. 37PECh. 8.2 - Describe what happens when Gaussian elimination is...Ch. 8.2 - Prob. 39PECh. 8.2 - Prob. 40PECh. 8.2 - Prob. 41PECh. 8.2 - Prob. 42PECh. 8.2 - Prob. 43PECh. 8.2 - Prob. 44PECh. 8.2 - Prob. 45PECh. 8.2 - Before beginning this exercise, the group needs to...Ch. 8.2 - Prob. 47PECh. 8.2 - Prob. 48PECh. 8.2 - Prob. 49PECh. 8.2 - Prob. 50PECh. 8.2 - Prob. 51PECh. 8.2 - Prob. 52PECh. 8.2 - Prob. 53PECh. 8.3 - Check Point 1 Let ...Ch. 8.3 - Prob. 2CPCh. 8.3 - Prob. 3CPCh. 8.3 - Prob. 4CPCh. 8.3 - Prob. 5CPCh. 8.3 - Prob. 6CPCh. 8.3 - Prob. 7CPCh. 8.3 - Check Point 8 Change the contrast of the letter L...Ch. 8.3 - Prob. 9CPCh. 8.3 - Prob. 1CVCCh. 8.3 - Prob. 2CVCCh. 8.3 - Prob. 3CVCCh. 8.3 - Prob. 4CVCCh. 8.3 - Prob. 5CVCCh. 8.3 - Prob. 6CVCCh. 8.3 - Prob. 7CVCCh. 8.3 - Prob. 8CVCCh. 8.3 - Prob. 9CVCCh. 8.3 - Prob. 10CVCCh. 8.3 - Prob. 1PECh. 8.3 - Prob. 2PECh. 8.3 - Prob. 3PECh. 8.3 - Prob. 4PECh. 8.3 - Prob. 5PECh. 8.3 - Prob. 6PECh. 8.3 - Prob. 7PECh. 8.3 - Prob. 8PECh. 8.3 - Prob. 9PECh. 8.3 - Prob. 10PECh. 8.3 - Prob. 11PECh. 8.3 - Prob. 12PECh. 8.3 - Prob. 13PECh. 8.3 - Prob. 14PECh. 8.3 - Prob. 15PECh. 8.3 - Prob. 16PECh. 8.3 - Prob. 17PECh. 8.3 - Prob. 18PECh. 8.3 - Prob. 19PECh. 8.3 - Prob. 20PECh. 8.3 - Prob. 21PECh. 8.3 - Prob. 22PECh. 8.3 - Prob. 23PECh. 8.3 - Prob. 24PECh. 8.3 - Prob. 25PECh. 8.3 - Prob. 26PECh. 8.3 - Prob. 27PECh. 8.3 - Prob. 28PECh. 8.3 - Prob. 29PECh. 8.3 - Prob. 30PECh. 8.3 - Prob. 31PECh. 8.3 - Prob. 32PECh. 8.3 - Prob. 33PECh. 8.3 - Prob. 34PECh. 8.3 - Prob. 35PECh. 8.3 - Prob. 36PECh. 8.3 - Prob. 37PECh. 8.3 - Prob. 38PECh. 8.3 - Prob. 39PECh. 8.3 - Prob. 40PECh. 8.3 - Prob. 41PECh. 8.3 - Prob. 42PECh. 8.3 - Prob. 43PECh. 8.3 - Prob. 44PECh. 8.3 - Prob. 45PECh. 8.3 - Prob. 46PECh. 8.3 - Prob. 47PECh. 8.3 - Prob. 48PECh. 8.3 - Prob. 49PECh. 8.3 - Prob. 50PECh. 8.3 - Prob. 51PECh. 8.3 - Prob. 52PECh. 8.3 - Prob. 53PECh. 8.3 - Prob. 54PECh. 8.3 - Prob. 55PECh. 8.3 - Prob. 56PECh. 8.3 - Prob. 57PECh. 8.3 - Prob. 58PECh. 8.3 - Prob. 59PECh. 8.3 - Prob. 60PECh. 8.3 - Prob. 61PECh. 8.3 - The table gives an estimate of basic caloric needs...Ch. 8.3 - 63. Tire final grade in a particular course is...Ch. 8.3 - 64. Ina certain county, the proportion of voters...Ch. 8.3 - 65. What is ment by the order or a matrix? Give an...Ch. 8.3 - Prob. 66PECh. 8.3 - Prob. 67PECh. 8.3 - Prob. 68PECh. 8.3 - Prob. 69PECh. 8.3 - Prob. 70PECh. 8.3 - Prob. 71PECh. 8.3 - Prob. 72PECh. 8.3 - Prob. 73PECh. 8.3 - Prob. 74PECh. 8.3 - Prob. 75PECh. 8.3 - Prob. 76PECh. 8.3 - Prob. 77PECh. 8.3 - Prob. 78PECh. 8.3 - Prob. 79PECh. 8.3 - Prob. 80PECh. 8.3 - Prob. 81PECh. 8.3 - Prob. 82PECh. 8.3 - Prob. 83PECh. 8.3 - Prob. 84PECh. 8.3 - Prob. 85PECh. 8.3 - Prob. 86PECh. 8.3 - Prob. 87PECh. 8.3 - Prob. 88PECh. 8.3 - Prob. 89PECh. 8.3 - Prob. 90PECh. 8.3 - Prob. 91PECh. 8.3 - Prob. 1MCCPCh. 8.3 - Prob. 2MCCPCh. 8.3 - Prob. 3MCCPCh. 8.3 - Prob. 4MCCPCh. 8.3 - Prob. 5MCCPCh. 8.3 - Prob. 6MCCPCh. 8.3 - Prob. 7MCCPCh. 8.3 - Prob. 8MCCPCh. 8.3 - Prob. 9MCCPCh. 8.3 - Prob. 10MCCPCh. 8.4 - Check Point 1 Show that B is the multiplicative...Ch. 8.4 - Prob. 2CPCh. 8.4 - Check Point 3 Find the multiplicative inverse of...Ch. 8.4 - Prob. 4CPCh. 8.4 - Prob. 5CPCh. 8.4 - Prob. 6CPCh. 8.4 - Prob. 7CPCh. 8.4 - Prob. 1CVCCh. 8.4 - Prob. 2CVCCh. 8.4 - Prob. 3CVCCh. 8.4 - Prob. 4CVCCh. 8.4 - Prob. 5CVCCh. 8.4 - Prob. 6CVCCh. 8.4 - Prob. 7CVCCh. 8.4 - Prob. 8CVCCh. 8.4 - Prob. 9CVCCh. 8.4 - In Exercises 1-12, find the products AB and BA to...Ch. 8.4 - Prob. 2PECh. 8.4 - Prob. 3PECh. 8.4 - Prob. 4PECh. 8.4 - Prob. 5PECh. 8.4 - Prob. 6PECh. 8.4 - Prob. 7PECh. 8.4 - Prob. 8PECh. 8.4 - Prob. 9PECh. 8.4 - Prob. 10PECh. 8.4 - Prob. 11PECh. 8.4 - Prob. 12PECh. 8.4 - Prob. 13PECh. 8.4 - Prob. 14PECh. 8.4 - Prob. 15PECh. 8.4 - Prob. 16PECh. 8.4 - Prob. 17PECh. 8.4 - Prob. 18PECh. 8.4 - Prob. 19PECh. 8.4 - Prob. 20PECh. 8.4 - Prob. 21PECh. 8.4 - Prob. 22PECh. 8.4 - Prob. 23PECh. 8.4 - Prob. 24PECh. 8.4 - Prob. 25PECh. 8.4 - Prob. 26PECh. 8.4 - Prob. 27PECh. 8.4 - Prob. 28PECh. 8.4 - Prob. 29PECh. 8.4 - Prob. 30PECh. 8.4 - Prob. 31PECh. 8.4 - Prob. 32PECh. 8.4 - Prob. 33PECh. 8.4 - Prob. 34PECh. 8.4 - Prob. 35PECh. 8.4 - Prob. 36PECh. 8.4 - Prob. 37PECh. 8.4 - Prob. 38PECh. 8.4 - Prob. 39PECh. 8.4 - Prob. 40PECh. 8.4 - Prob. 41PECh. 8.4 - Prob. 42PECh. 8.4 - Prob. 43PECh. 8.4 - Prob. 44PECh. 8.4 - Prob. 45PECh. 8.4 - Prob. 46PECh. 8.4 - Prob. 47PECh. 8.4 - Prob. 48PECh. 8.4 - Prob. 49PECh. 8.4 - Prob. 50PECh. 8.4 - In Exercises 51-52, use the coding matrix A=[4131]...Ch. 8.4 - Prob. 52PECh. 8.4 - Prob. 53PECh. 8.4 - Prob. 54PECh. 8.4 - Prob. 55PECh. 8.4 - Prob. 56PECh. 8.4 - Prob. 57PECh. 8.4 - Prob. 58PECh. 8.4 - Prob. 59PECh. 8.4 - Prob. 60PECh. 8.4 - Prob. 61PECh. 8.4 - Prob. 62PECh. 8.4 - Prob. 63PECh. 8.4 - Prob. 64PECh. 8.4 - Prob. 65PECh. 8.4 - Prob. 66PECh. 8.4 - Prob. 67PECh. 8.4 - Prob. 68PECh. 8.4 - Prob. 69PECh. 8.4 - Prob. 70PECh. 8.4 - Prob. 71PECh. 8.4 - In Exercises 71-76, write each system in the form...Ch. 8.4 - Prob. 73PECh. 8.4 - Prob. 74PECh. 8.4 - Prob. 75PECh. 8.4 - Prob. 76PECh. 8.4 - Prob. 77PECh. 8.4 - Prob. 78PECh. 8.4 - Prob. 79PECh. 8.4 - Prob. 80PECh. 8.4 - Prob. 81PECh. 8.4 - I made an encoding error by selecting the wrong...Ch. 8.4 - Prob. 83PECh. 8.4 - Prob. 84PECh. 8.4 - Prob. 85PECh. 8.4 - Prob. 86PECh. 8.4 - Prob. 87PECh. 8.4 - Prob. 88PECh. 8.4 - 89. Give an example of a matrix that is its own...Ch. 8.4 - Prob. 90PECh. 8.4 - Prob. 91PECh. 8.4 - Prob. 92PECh. 8.4 - Prob. 93PECh. 8.4 - Prob. 94PECh. 8.4 - Prob. 95PECh. 8.4 - Prob. 96PECh. 8.4 - Prob. 97PECh. 8.4 - Prob. 98PECh. 8.4 - Prob. 99PECh. 8.5 - Prob. 1CPCh. 8.5 - Prob. 2CPCh. 8.5 - Prob. 3CPCh. 8.5 - Prob. 4CPCh. 8.5 - Prob. 5CPCh. 8.5 - Prob. 6CPCh. 8.5 - Prob. 1CVCCh. 8.5 - Prob. 2CVCCh. 8.5 - Prob. 3CVCCh. 8.5 - Prob. 4CVCCh. 8.5 - Prob. 5CVCCh. 8.5 - Prob. 1PECh. 8.5 - Prob. 2PECh. 8.5 - Prob. 3PECh. 8.5 - Prob. 4PECh. 8.5 - Prob. 5PECh. 8.5 - Prob. 6PECh. 8.5 - Prob. 7PECh. 8.5 - Prob. 8PECh. 8.5 - Prob. 9PECh. 8.5 - Prob. 10PECh. 8.5 - Prob. 11PECh. 8.5 - Prob. 12PECh. 8.5 - Prob. 13PECh. 8.5 - Prob. 14PECh. 8.5 - Prob. 15PECh. 8.5 - Prob. 16PECh. 8.5 - Prob. 17PECh. 8.5 - Prob. 18PECh. 8.5 - Prob. 19PECh. 8.5 - Prob. 20PECh. 8.5 - Prob. 21PECh. 8.5 - Prob. 22PECh. 8.5 - Prob. 23PECh. 8.5 - Prob. 24PECh. 8.5 - Prob. 25PECh. 8.5 - Prob. 26PECh. 8.5 - Prob. 27PECh. 8.5 - Prob. 28PECh. 8.5 - Prob. 29PECh. 8.5 - Prob. 30PECh. 8.5 - Prob. 31PECh. 8.5 - Prob. 32PECh. 8.5 - In Exercises 29-36, use Cramer's Rule to solve...Ch. 8.5 - Prob. 34PECh. 8.5 - Prob. 35PECh. 8.5 - Prob. 36PECh. 8.5 - Prob. 37PECh. 8.5 - Prob. 38PECh. 8.5 - Prob. 39PECh. 8.5 - Prob. 40PECh. 8.5 - Prob. 41PECh. 8.5 - Prob. 42PECh. 8.5 - Prob. 43PECh. 8.5 - Prob. 44PECh. 8.5 - Prob. 45PECh. 8.5 - Prob. 46PECh. 8.5 - Prob. 47PECh. 8.5 - Prob. 48PECh. 8.5 - Prob. 49PECh. 8.5 - Prob. 50PECh. 8.5 - Prob. 51PECh. 8.5 - then the points ,and are collinear. If the...Ch. 8.5 - Prob. 53PECh. 8.5 - Prob. 54PECh. 8.5 - Prob. 55PECh. 8.5 - Prob. 56PECh. 8.5 - Prob. 57PECh. 8.5 - Prob. 58PECh. 8.5 - Prob. 59PECh. 8.5 - Prob. 60PECh. 8.5 - Prob. 61PECh. 8.5 - 62. If you could use only one method to solve...Ch. 8.5 - Use the feature of your graphing utility that...Ch. 8.5 - Prob. 64PECh. 8.5 - Prob. 65PECh. 8.5 - Prob. 66PECh. 8.5 - Prob. 67PECh. 8.5 - Prob. 68PECh. 8.5 - Prob. 69PECh. 8.5 - Prob. 70PECh. 8.5 - Prob. 71PECh. 8.5 - Prob. 72PECh. 8.5 - Prob. 73PECh. 8.5 - Prob. 74PECh. 8.5 - 75. Show that the equation of a line through and ...Ch. 8.5 - Prob. 76PECh. 8.5 - Prob. 77PECh. 8.5 - Prob. 78PECh. 8.5 - Prob. 79PECh. 8.5 - Prob. 80PECh. 8.5 - Prob. 81PECh. 8.5 - Prob. 82PECh. 8.5 - Prob. 83PECh. 8 - Prob. 1RECh. 8 - Prob. 2RECh. 8 - Prob. 3RECh. 8 - Prob. 4RECh. 8 - Prob. 5RECh. 8 - Prob. 6RECh. 8 - Prob. 7RECh. 8 - Prob. 8RECh. 8 - Prob. 9RECh. 8 - Prob. 10RECh. 8 - Prob. 11RECh. 8 - Prob. 12RECh. 8 - Prob. 13RECh. 8 - Prob. 14RECh. 8 - Prob. 15RECh. 8 - Prob. 16RECh. 8 - Prob. 17RECh. 8 - Prob. 18RECh. 8 - Prob. 19RECh. 8 - Prob. 20RECh. 8 - Prob. 21RECh. 8 - Prob. 22RECh. 8 - Prob. 23RECh. 8 - Prob. 24RECh. 8 - Prob. 25RECh. 8 - Prob. 26RECh. 8 - Prob. 27RECh. 8 - Prob. 28RECh. 8 - Prob. 29RECh. 8 - Prob. 30RECh. 8 - Prob. 31RECh. 8 - Prob. 32RECh. 8 - Prob. 33RECh. 8 - Prob. 34RECh. 8 - Prob. 35RECh. 8 - Prob. 36RECh. 8 - Prob. 37RECh. 8 - Prob. 38RECh. 8 - Prob. 39RECh. 8 - Prob. 40RECh. 8 - Prob. 41RECh. 8 - Prob. 42RECh. 8 - Prob. 43RECh. 8 - Prob. 44RECh. 8 - Prob. 45RECh. 8 - Prob. 46RECh. 8 - Prob. 47RECh. 8 - Prob. 48RECh. 8 - Prob. 49RECh. 8 - Prob. 50RECh. 8 - Prob. 51RECh. 8 - Prob. 52RECh. 8 - Prob. 53RECh. 8 - Prob. 54RECh. 8 - Prob. 55RECh. 8 - Prob. 56RECh. 8 - Prob. 1TCh. 8 - Prob. 2TCh. 8 - Prob. 3TCh. 8 - Prob. 4TCh. 8 - Prob. 5TCh. 8 - Prob. 6TCh. 8 - Prob. 7TCh. 8 - Prob. 8TCh. 8 - Prob. 9TCh. 8 - Prob. 10TCh. 8 - Prob. 1CRECh. 8 - Prob. 2CRECh. 8 - Prob. 3CRECh. 8 - Prob. 4CRECh. 8 - Solve each equation or inequality in Exercises...Ch. 8 - Prob. 6CRECh. 8 - Prob. 7CRECh. 8 - Prob. 8CRECh. 8 - Prob. 9CRECh. 8 - Prob. 10CRECh. 8 - Prob. 11CRECh. 8 - Prob. 12CRECh. 8 - Prob. 13CRECh. 8 - Prob. 14CRECh. 8 - Prob. 15CRECh. 8 - Prob. 16CRECh. 8 - Prob. 17CRECh. 8 - Prob. 18CRECh. 8 - Prob. 19CRECh. 8 - Prob. 20CRECh. 8 - Prob. 21CRECh. 8 - Prob. 22CRECh. 8 - Prob. 23CRECh. 8 - Prob. 24CRECh. 8 - Prob. 25CRE
Knowledge Booster
Background pattern image
Calculus
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, calculus and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Text book image
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Text book image
Mathematics For Machine Technology
Advanced Math
ISBN:9781337798310
Author:Peterson, John.
Publisher:Cengage Learning,
Text book image
Algebra for College Students
Algebra
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Cengage Learning
Text book image
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
SEE MORE TEXTBOOKS
Quadrilaterals: Missing Angles and Sides; Author: rhornfeck;https://www.youtube.com/watch?v=knVj1O0L2TM;License: Standard YouTube License, CC-BY
STD IX | State Board | Types of Quadrilateral; Author: Robomate;https://www.youtube.com/watch?v=wh0KQ4UB0EU;License: Standard YouTube License, CC-BY