Question

find the surface area of sphere with radius 2.1cm?​

Answer 1

Answer:

Surface \: area \: of \: sphere \:= 55.44 : {cm}^{2}

Step-by-step explanation:

Surface \: area \: of \: sphere \: = 4\pi {r}^{2} \\ = 4 \times \frac{22}{7} \times 2.1 \times 2.1 \\ = \frac{388.08}{7} \\ = 55.44 \: {cm}^{2}

PLEASE MARK IT BRAINILIEST

Answer 2

Given radius of sphere =2.1 cm

We know that Surface area of sphere = 4πr^2

Substitute r = 2.1 cm , we get

4×22/7× 2.1×2.1

By calculating we get

Surface area of Sphere = 55.44 cm^2

• If my answer is correct and if you like it ,then.....
• Mark it as a Brainliest answer and thank me....