Question

Find the surface area of a sphere with radius 1.25 miles.

24.5 miles^2

19.63 miles^2

196.35 miles^2

78.5 miles^2

Answer 1

Radius of sphere=1.25miles
Surface area=4pi×r^2
=4×22×1.25×1.25/7
=137.5/7
=19.642
=19.63miles^2