1.

Find the surface area (in cm2) of a sphere of diameter 28 cm.1). 34222). 38523). 24644). 3550

Answer»

⇒ Radius = diameter/2 = 28/2 = 14 cm

Now,

∴ Surface area = 4 × π × radius2 = 4 × (22/7) × 142 = 2464 cm2


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