Mensuration Practice Test 6

Question : 6 of 40

Marks: +1, -0

Find the surface area of a sphere inscribed in a cylinder with diameter of 42 cm and height of 28 cm.

Solution:

Radius of the sphere = Radius of the cylinder
=

{42}/2

= 21 cm
Surface area of the sphere =

4πr^2

4 × {22}/7 × 21 × 21

5544 cm^2

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