Question

if a sphere has the same surface area as the total surface area of a circular cone of height 40 cm and radius 30 cm find the radius of the sphere

Answer 1

Answer:

p here stands pie=22/7=3.14

4pr^2=1/3*p*30*30*40

4r^2=12000

r^2=3000

r=root(3000)

r=54.77225575051661 cm

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