## lostdove 3 years ago the diameter of the moon is 3480km. (a) whats the surface area of the moon? (b)how many times larger is the surface area of the earth?

1. Annand

surface area of a sphere is $4\pi*r^2$ r=radius...

2. Annand

assuming spherical shape to moon, its radius is 3480/2 km... substitute to find the area

3. lostdove

can u show me the work like how u got that

4. Annand

got what?

5. Annand

area?

6. lostdove

yeah

7. Annand

value of pi is approximately 3.14... just substitute surface area=4*(3.14)*(1740)^2 sq.km