SA = 2 * pi * r^2
SA = 2 * 3.14 * 10^2
SA = 6.28 * 100
SA = 628 sq. ft.
http://mathcentral.uregina.ca/QQ/database/QQ.09.07/h/nicholas4.html
calculate the surface area of a hemisphere with the radius 10 ft
1 answer
1 answer