Question

Pls answer no explanation needed!!

Answer 1

37.68

Explanation:

4^2=16

16x3.14=50.24

50.24/2=25.12

25.12/2=12.56

25.12+12.56=37.68

Answer 2

12pi.

Explanation:

The area of the circle is pi * r^2.

r = 4.

pi * 4^2 = pi * 16 = 16pi.

There is 3/4 of the circle. (3/4) * 16pi = 3 * 4pi = 12pi.

Hope this helps!