Question

Find the surface area of a sphere of radius 7cm
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Answer 1

Answer:

4*pi*r^2

=4*22/7*7*7

=88*7

=616cm.sq.

Step-by-step explanation:

Answer 2

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Given:

Sphere of Radius = 7cm.

To Find:

Surface Area.

Solution

$We \: \: know \: \: that$

Surface area of of spear of radius

$4\pi \: r {}^{2}$

$= > 4\pi \: r {}^{2} = \frac{22}{7} \times 7 \times 7cm {}^{2}$

$= > 4 \times 22 \times 7 = 616 \: cm {}^{2}$

Hence, The Surface area of sphere is is 616cm