Question

I don't understand how to do this. please help. ​

Answer 1

Answer:

use the formula to find area, then multiply by the leingth, so 18 in your case. Also, the formula for area is A=(pi)r squared

Step-by-step explanation:

hope this helps

Answer 2

Answer:

B. 3,052.08

Step-by-step explanation:

Radius:

r=d/2

r=18/2

r=9

Volume of Sphere:

V=(4/3)π$r^{3}$

V=(4/3)(3.14)$9^{3}$

V=(4/3)(3.14)729

V=(4/3)2289.06

V=3052.08

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