Question

5) Find the surface areas and volumes of
spheres of radius 4 cm ( TI = 3.14)​

Answer 1

Answer:

SURFACE AREA OF SPHERE

4πR²

4×3.14×4×4

64×3.14

200.96 cm³

VOLUME OF SPHERE

4/3 πR³

4/3×3.14×4×4×4

297.947 cm³

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Answer 2

Hey mate,

Here is your answer

Given ,

radii(r)= 4cm

We know that,

A sphere with radius r has a volume of (4/3)πr³  and a surface area of 4πr²,

Hence,

Surface area of sphere is= 4πr²

= 4×3.14× (4²)

= 12.56× 16

= 200.96cm²

Volume of sphere is= (4/3)πr³

= (4/3)×3.14× (4³)

= (12.56/3)× 64

= 267.904 cm³

Hope it helps !!!

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