We need to find the radius
Circumference = 2 pi * r
37.68 = 2pi *r divide both sides by 2pi
37.68/ (2pi) = r
The surface area = 4 pi r^2......sub "r" into this and we get
4pi [ 37.68 / (2pi) ] ^2 ≈ 451.9 km^2
Thank you, I had figured it out just like that! :D thanks
OK, NSS.......good to see that you're catching on to some of this stuff......