Question

Csa of a right cylinder of height 14 cm is 88cm sq find the diameter

Answer 1

• Diameter is 2 cm.

Step-by-step explanation:

Given:-

• Height of cylinder is 14 cm.
• Curved surface area of cylinder is 88 cm².

To find:-

• Diameter of cylinder.

Solution:-

We know that,

Curved surface area of cylinder = 2πrh

In which

• r and h are Radius and height of cylinder respectively.

Curved surface area = 88 cm².

Height = 14 cm.

Put Height and C.S.A in formula:

➝ 88 = 2 × π × r × 14

➝ 88 = 2× 22/7 × r × 14

➝ 88 = 616/7 r

➝ 88 = 88r

➝ 88/88 = r

➝ 1 = r

Or, r = 1

Radius of cylinder is 1 cm.

We know that,

Diameter = 2 × Radius

So,

➝ Diameter = 2 × 1

➝ Diameter = 2

Therefore,

Diameter is 2 cm.