SOLUTION: the radius ofthe base of a cylinder is 28cm and its height is 48cm. Find the surface area of the cylinder in terms of pie
Algebra ->
Surface-area
-> SOLUTION: the radius ofthe base of a cylinder is 28cm and its height is 48cm. Find the surface area of the cylinder in terms of pie
Log On
Question 271241: the radius ofthe base of a cylinder is 28cm and its height is 48cm. Find the surface area of the cylinder in terms of pie Answer by CharlesG2(834) (Show Source):
You can put this solution on YOUR website! the radius ofthe base of a cylinder is 28cm and its height is 48cm. Find the surface area of the cylinder in terms of pie
Surface Area = Areas of top and bottom + Area of the side
= 2 * pi * r^2 + circumference * height
= 2 * pi * r^2 + 2 * pi * r * h
= pi * (2 * r^2 + 2 * r * h)
= 2pi * (r^2 + rh)
= 2*r*pi * (r + h)
= 2 * 28 * pi * (28 + 48)
= 56 * pi * 76
= 4256 * pi
(that is a lot of pie, lol)
(