Question

Part 1: the following formula gives the area of a circle, A, dependent on its radius, r.

A = πr²

solve the equation for the variable r.


part 2: using the answer from the previous question, ^^ state the value of ‘r’ if the area of the circle were equal to 37 square feet.

(you can use 3.14 to approximate the value of π in the equation”

Answer 1

3.43ft

Explanation:

Step one:

given data

the expression for the area is

A = πr²

make r subject of the formula

divide both sides by π

A/π =r²

square root both sides

r=√A/π

step two:

given that A= 37 ft^2

r= √37/3.142

r=√11.77

r=3.43ft