Question

circumference of the base of a cylinder is 88 cm and its height is 15 cm. find its curve surface area and total surface area?

Answer 1

circumference of base =88cm
let radius=(r)cm
2(pi)r= 88
2×22/7r=88
r=88×7/22×2
r=14
therefore radius =14cm
now TSA = 2(pi)r(h+r)
=2×22/7×14(15+14)
=2552cm sq.
and CSA = 2(pi)rh
=2×22/7×14×15
=1320 cm sq.