Question

A sphere has diameter 6cm The surface area of the sphere​

Answer 1

Answer:

TSA of sphere=4πr^2

Hence TSA=113.15. (approx)

Answer 2

Step-by-step explanation:

Given that

Diameter of sphere is 6cm

To find

Surface area of sphere

Solution

As we know that

$area \: of \: sphere = 4\pi \times {r}^{2}$

where r is radius of sphere

it can be calculated by

$r = \frac{diameter}{2} \\ = \frac{6}{2} = 3cm$

hence

$surface \: area \: of \: sphere = 4 \times \pi \times {3}^{2} \\ =4\times 3.14\times 9\\= 113.04 {cm}^{2}$