Question

the perimeter of the Base of a right circular cylinder is 88 cm and height is 5 cm. then what will be its curved surface area?

Answer 1

perimeter * hight
88*5=440

Answer 2

Height of the cylinder = 5 cm

Here Perimeter of base is given 88 cm

We know that base of cylinder is a circle and perimeter of circle = circumference = 2πr

∴ 2πr = 88 cm²

Also, Curved Surface Area of a Cylinder = 2πrh

                                                   = 88 cm × 5 cm (∵2πr = 88 cm and h = 5 cm)

Curved Surface Area of given Cylinder = 440 cm²