Question

9. The C.S.A of a right circular cylinder of height 14 cm is 88 cm find the diameter of the base of the cylinder​

Answer 1

Explanation:

The curved surface area of a right circular cylinder of height 14 cm is 88 cm2 . Find the diameter of the base of the cylinder. Let the radius of the base of the cylinder be r cm. Hence, the diameter of the base of the cylinder is 2 cm.

Answer 2

SOLUTSOLUTION :

➢Given

The height of cylinder =14cm

and , the curved surface area of cylinder =88cm 2

we know that :

the curved surface area of cylinder =2πrh

and 2r=d

here , r=radius of cylinder

d=diameter of cylinder and,

h=height of cylinder

so .the curved surface area of cylinder =πdh =88cm 2

π×d×14=88

22

── ×d×14=88

7

d=2cm

so, the diameter of the cylinder is 2cm.