Question

Use the squares to help you find a reasonable range for the area of the circle. Show your work.

A circle is placed on a grid of squares, each one unit by one unit. A rectangle that is 7 units by 5 units fits completely inside the circle. The circle fits completely inside a square that is nine units on each side.

Answer 1

since the circle fits completely inside the square of side 9 units then the diameter of the circle will be 9. I think .

Answer 2

then, the radius will be 9/2.

so area is $$\huge \pi * \ (9/2)^2$$