Homework book Chapter 2.4
Question number 16
A square has an area of 225 cm². What is the radius of the largest circle that can fit inside the square? Show your thinking.
S² = 225cm²
So if S² is 225cm² than what i had to do was find S by it by itself. By finding S i had to square root S² .
√225cm² and i got 15.
S = 15cm
Since i found S which is one side of the square, i know that one side equals to the diameter of the circle. So what i did next was took the diameter and dived it by 2.
d/2 = r
15/2 = 7.5
7.5 = r
The radius of the largest circle is 7.5cm.