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:
A. (x*2.5)*x
B. (32*2.5)*32=2560
Step-by-step explanation:
The answer is w = 12 hope this helped:)
A (b-c) = d
b-c = d/a
-c = (d/a) - b
-c = (d-ab) /a
c = (ab-d)/a
Answer:
center (-13,2) radius=9
Step-by-step explanation:
(x+13)^2+(y+2)^2=81
x=-13
y=-2
r=sq rt of 81
