If a sphere has the same surface area as the tsa of circular cone of height 40cm and radius 30cm, find the radius of sphere
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Answer:
Step-by-step explanation:
It IS GIVEN THAT THE HEIGHT OF CONE =40CM
AND RADIUS OF CONE =30CM
SO l =√40×40+30×30
=50cm
According to the question
Surface are of sphere= total surface area of cone
4πr'2=πr(l+r)
4r'2=30×80
r'2=600
r=√600
=10√6 cm and.
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