Question

What the hell is this they didn’t teach me this help me

Answer 1

Answer:

C

Step-by-step explanation:

Area = π$r^{2}$

r means radius

radius = d/2

d = diameter

8 /2 = 4

4 is radius

$4^{2}$ = 16

^ ( its 4 x 4 ) ^

so then,

Area = 16π

Answer 2

Answer:

Step-by-step explanation:

$A=\pi r^2,\ r=\frac{d}{2}\\ \\ A=\frac{\pi d^2}{4},\ d=8cm\\ \\ A=\frac{64\pi}{4}\\ \\ A=16\pi cm^2$