Question

Find the surface area of sphere and hemi sphere with radius 7cm​

Answer 1

answer of this question is 615.75

Answer 2

Answer:

Surface area of sphere = 4πr^2

( where r is radius of sphere)

So, surface area of sphere = 4 × 22/7 × 7 × 7

= 616 square centimetre.

total surface area of a solid hemisphere = 3∏r2 = 3 × 22/7 × 7 × 7 = 462 cm2

Step-by-step explanation:

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