Question

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?

Answer 1

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

Answer 2

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

Answer 3

can u show me the work like how u got that

Answer 4

got what?

Answer 5

area?

Answer 6

yeah

Answer 7

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