Asked by Albert Einstein
The surface area of this hemisphere is 1062 cm^2. what is its radius? please help me calculate this step by step
Answers
Answered by
Steve
a sphere has area 4πr^2. You have half a sphere, so just solve for r in
2πr^2 = 1062
r^2 = 1062/2π
...
2πr^2 = 1062
r^2 = 1062/2π
...
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