Question

You

Answer 1

Answer:

The Surface area of the moon is  $4.53 \times 10^{17}$

Step-by-step explanation:

Given:

Diameter of the moon =  3.8 x 10 to the 8th

To Find :

The surface area of the moon = ?

Solution:

The moon is in the shape of of the sphere .

So the surface area of the moon = surface area of the sphere

The surface area of the sphere  = $4\pi r^2$

Where r is the radius of the sphere

Radius , r = $\frac{Diameter}{2}$

r =  $\frac{3.9 \times 10^8}{2}$

r =  $1.9 \times 10^8$

Now the surface area of the moon with radius r =  $1.9 \times 10^8$ is

=> $4 \pi \times (1.9 \times 10^8)^2$

=>$4 \times 3.14 \times (1.9 \times 10^8)^2$

=>$12.56 \times 3.61 \times 10^{16}$

=>$45.34 \times 10^{16}$

=>$4.53 \times 10^{17}$