The circumference of an oreo is 6.28 inches what is the area of the top cookie?

The circumference of an Oreo is 6.28 inches what is the area of the top cookie?

Solution:

Circumference= 6.28 inches

The formula of circle =2πr

So, 2πr=6.28

2*3.14*r=6.28

6.28r=6.28

To find the value of r, Let us divide by 6.28 on both sides

6.28 r /6.28 =6.28/6.28

r=1

Area of circle=πr²

=π1²

=π

=3.14 inches²

Area of the top cookie=3.14 inches²

D. -6.1 - (-3.13) = -2.97