Question

what is the area of curved surface of right circular with height 14cm and radius of base 5cm

Answer 1

Height of the cylinder =h = 14cm let radius of the base = r cm curved surface area =CSA = 2πrh this is equal to 88cm² given in the problem 2πrh = 88 2*22/7*r*14 =88 2*22*2*r =88 [ after cancellation] 88r = 88 r = 88/88 r =1 cm therefore diameter (d) = 2r=2*1cm = 2cm

Answer 2

Base radius=5cm
height=14cm
curved surface area=2pi*r*h
=2*22/7*5*14
88*5
440sq.cm