# The total surface area of a solid right circular cylinder is 1540 cm if the height is four times the radius of the base ,then find the height of the cylinder.

2
by abhi65

Log in to add a comment

by abhi65

Log in to add a comment

h = 4r

TSA = 2πr(r+4r)

TSA = 2πr(5r)

TSA = 10πr²

10πr² =1540

πr² =154

r² = 49

r = 7

h = 4r

h = 4 * 7

h = 28