Answer:
I would say the last one
Step-by-step explanation:
The third works the same way but 46/17 is hard to calculate without a calculator
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
Answer:
yessssss
Step-by-step explanation:
...........
It is D, as 2 plus 3 is 5 which is half of 10.
As no diagrams provided ,you cab solve according to the formulas provided below
Rectangle:-
Semicircle:-
r is radius
