Question

the base radius and the height of a right circular cylinder are 7 cm and 4 cm respectively the curved surface area of the cylinder is​

Answer 1

Answer:

The base radius and the height of a right circular cylinder are 7 cm and 4 cm respectively the curved surface area of the cylinder is​ 176 cm²

Step-by-step explanation:

To answer this question, let's first write down the formula for getting the curved surface area of a cylinder.

The curved surface area of a cylinder = 2πrh

Where:

h = the height of the cylinder

r = the radius of the cylinder

π = constant = 22/7

In our case, we have that:

h = 4 cm

r = 7 cm

Substituting these values in the formula we have:

Curved surface area = 22/7 × 7 × 2 × 4 = 176 cm²

Answer 2

Curved surface area of the cylinder = 176 sq. cm

Step-by-step explanation:

Given: Base radius of a circular cylinder = 7cm.

Height of the cylinder = 4 cm.

To find: Curved surface area of the cylinder.

Formula: Curved surface area =  2πr × h

r = 7 and h = 4

So substituting the values in the formula, we get:

Curved surface area of the cylinder = 2 * π * 7 * 4 = 2 * 22/7 * 7 * 4 = 44 * 4

Curved surface area of the cylinder = 176 sq. cm