Question

If the diameter of a sphere is 16 cm, then its surface area is: 

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Answer 1

Answer:

804.5

Step-by-step explanation:

s.a =4πr²

r=16/2

=8cm

s.a=4×22/7×8×8

=5638/7

=. 804.5

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Answer 2

Answer:

804.57 cm²

Step-by-step explanation:

GIVEN :

Diameter of a sphere  =  16 cm

⇒Radius of the sphere = 16 ÷ 2

                                      = 8cm

To Find:

The Surface Area  of the  sphere

Formula:

$\boxed{The .Surface. Area . of .the .sphere = 4\pi r^{2} }$where r is the radius

Solution:

The Surface Area  of the  sphere = 4πr²

                                                         = 4 ×$\frac{22}{7}$ × 8 × 8

                                                         = $\frac{5632}{7}$

                                                         =804.57 cm²

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