Suppose that a student in your class wants to know why we multiply only 2 of the lengths of the sides of a rectangle to determine the rectangle’s area. After all, when we calculate the perimeter of a rectangle, we add the lengths of the 4 sides of the rectangle, so why don’t we multiply the lengths of the 4 sides to fmd the area?
- Explain to the student what perimeter and area mean, and explain why we carry out the perimeter and area calculations for a rectangle the way we do.
- Describe some problems or activities that might help the student understand the calculations.
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
Mathematics for Elementary Teachers with Activities (5th Edition)
Additional Math Textbook Solutions
Calculus for Business, Economics, Life Sciences, and Social Sciences (14th Edition)
Probability and Statistics for Engineers and Scientists
Using and Understanding Mathematics: A Quantitative Reasoning Approach (6th Edition)
Calculus Volume 3
Thinking Mathematically (7th Edition)
Mathematics for the Trades: A Guided Approach (11th Edition) (What's New in Trade Math)
- When the length of each edge of a cube is increased by 1 cm, the volume is increase by 61 cm3. What is the length of each edge of the original cube?arrow_forwardThe numerical difference between the area of a square and the perimeter of that square is 32. Find the length of a side of the square.arrow_forwardOne side of a rectangle is 2 cm longer than a second side. If the area is 35cm2, find the dimensions of the rectangle.arrow_forward
- Find the base and height of a triangle whose base is four inches more than six times height and hasan area of 456 square inches.arrow_forwardFind the largest area possible if the association has 1200 feet of fencing available.arrow_forwardWhat is the height of a triangle with area 277.2 square inches and base 44 inches?arrow_forward
- Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal LittellAlgebra for College StudentsAlgebraISBN:9781285195780Author:Jerome E. Kaufmann, Karen L. SchwittersPublisher:Cengage LearningIntermediate AlgebraAlgebraISBN:9781285195728Author:Jerome E. Kaufmann, Karen L. SchwittersPublisher:Cengage Learning
- Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL