Answer:
Step-by-step explanation:
(16*16)+(8*8)
16. 8
16. 8
—————-
96. 64
160
—————-
256+64=320
(12)(20)= 240
The answer is going to be B. 240 sq ft
We know that
[surface area of sphere]=4πr²
[surface area of hemisphere]=2πr²
(sphere)
r=12 in
[surface area of sphere ]=4π12²--------> 576π in²
(hemisphere)
r=12 in[surface area of hemisphere ]=2π12²--------> 288π in²
[the ratio of the surface area of sphere to the surface area of hemisphere]
=576π/288π-------> 2
the answer is
the ratio is 2
