Question

find the surface area of a sphere with a diameter of 8 m.​

Answer 1

Answer:

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Answer 2

Question:

Find the surface area of a sphere with a diameter of 8 m.

Given:

Diameter of sphere= 8m

To Find:

Surface area of Sphere

Formula to be Used:

$\mathsf{Surface \: area \: of \: Sphere=4πr²}$

Solution:

To find the surface area of sphere we have to conver diameter into radius.

$\mathsf{d = 2r}$

where, d is Diameter and r is Radius.

$\implies\mathsf{8=2r}$

$\implies \large\mathsf{\frac{8}{2} = r}$

$\implies \mathsf{=4 r}$

Now, Using formula we get,

---›$\mathsf{Surface\: area\: of\: sphere=4πr²}$

Using value of π as 3.14 then,

$\mathsf{Surface\: area\: of\: sphere=4\times 3.14\times 4²}$

$\mathsf{Surface\: area\: of\: sphere=12.56\times 16}$

---›$\mathsf{Surface\: area\: of\: sphere=200.96}$

$\therefore$ The Surface area of sphere is 200.96 m.

More to know:

$\mathsf{>Volume\: of\: sphere=\large\frac{4}{3}πr³}$

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