Surface area of the moon

Question

what is the surface area of the moon if it's diamenter is 3480 km?

Answer 1

If you want to do it mathematically, here is the way:

Simply use the Surface Area formula for a sphere since the moon is a sphere:

SA=4pi(r^2)

We need to find the radius, so the radius is half the diameter:

r=3840/2

r=1920

Now justplug this into the formula:

SA=4pi(1920^2)

SA=4pi(3686400)

SA=46324660.63

The surface area of the moon is approximately 46324660.63 km^2

(NOTE: THIS IS JUST AN APPROXIMATION, THE MOON IS PRECISELY A SPHERE, BUT IT'S CLOSE ENOUGH)

Hope this helps!!!!!!!

Answer 2

SA of a sphere = 4 * pi * r^2

Plug in your radius, and you'll get 12,110,400 pi => 38,045,943.67 km^2

But that's just an approximation, since you need to take into account all the different surface features like craters and mountains.

Answer 3

Do the math: 4 Pi r ^2, where r is 1/2 diameter...