Question

find the surface area of a sphere of radius 7cm​

Answer 1

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Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction: Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.

Answer 2

Answer:

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Explanation:

$q \:</p><p> find \: the \: surface \: area \: </p><p>of a \: sphere \: of \: radius \: </p><p>7cm$

ANSWER

S=4πr2

r=7 cm

S=4×722×49=616 cm2