The curved surface area of a hemisphere is 77cm square. Find the radius of the hemisphere.
Answers
Answered by
25
CSA of hemisphere = 2πr^2
77 = 2×(22/7)×r^2
r^2 = 77×7/44
r^2 = 49/4
r = 7/2
r = 3.5cm
hope this helped you ..... .. !
77 = 2×(22/7)×r^2
r^2 = 77×7/44
r^2 = 49/4
r = 7/2
r = 3.5cm
hope this helped you ..... .. !
Answered by
5
the answer is 3.5
hope It help you
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