# Find the Surface Area of a Sphere of Radius 3.5 Cm. - Geometry

Sum

Find the surface area of a sphere of radius 3.5 cm.

#### Solution

Radius (r) of sphere = 3.5 cm

∴ Surface area = 4πr2

= 4 xx 22/7 xx 3.5 xx 3.5

= 88 xx 1.75

= 154 cm2

Concept: Concept of Surface Area, Volume, and Capacity
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