Question

find the volume, c.s.a., t.s.a. of sphere (r=21 cm)​

Answer 1

Step-by-step explanation:

1. CSA/TSA of Sphere = $4\pi r^2$ =  4 x 22/7 x 441 = 38808/7 = 5544 sq.cm

2. Volume of Sphere =  $\frac{4}{3}\pi r^3$ = 4/3 x 22/7 x 9261 = 814968/21 = 38808 cu.cm

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