To get the surface area of a sphere, we need to have the radius. We are given the circumference. The circumference formula is C=2πr. We need to solve for r.
23 = 2πr
r=3.66
The calculation for surface area is <span>A = 4πr^2.
</span>A = 4<span>π(3.66)^2
Solve for A.
A= 168 cm^2.</span>
Answer: hopefully c
Step-by-step explanation:
if so gimme some brainiest
Answer:
2827.4
Step-by-step explanation:
V = πr2h this is the equation that can be used for these problems.
V= π(10)2(9)
the radius is 10 because the diameter is 20. Divide the given diameter by 2 to find the radius.
I would say yes just by observing them for a few minutes
Answer:
50%
Step by step explanation
100 divided by 4 is 25
Since it is both blue and black, it is doubled from 25 to 50
