Concept explainers
a.
To solve formula for r .
a.
Answer to Problem 36E
Explanation of Solution
Given information:
The area of circle
Calculation:
The area of circle
Divide both sides by pi
On solving
b.
To find radius of each circle.
b.
Answer to Problem 36E
Explanation of Solution
Given information:
Formula used:
Calculation:
Radius of circle
Area
Using formula
On solving
Radius of circle
Area
Using formula
On solving
Radius of circle
Area
Using formula
On solving
c.
To explain why it is beneficial to solve formula for r before finding the radius.
c.
Answer to Problem 36E
Easy and less time consuming process of radius finding.
Explanation of Solution
Given information:
The area of circle is
When finding radius of circle substitute value of area and divide by pi .After this square root the result
The radius of circle is
Firstly square root the area of circle and multiply by factor
It is easy and less time consuming process of radius finding.
Chapter 9 Solutions
BIG IDEAS MATH Integrated Math 1: Student Edition 2016
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