Answer:
=38.465 cm^2
Explanation:
This is 90 degrees of the 360 in a circle or 1/4 of a circle
The area of a circle is pi r^2
We have 1/4 of the circle, so we have 1/4 of the area
1/4 A = 1/4 pi r^2
= 1/4 pi (7^2)
= 1/4 pi *49
= 1/4 (3.14) *49
=38.465 cm^2