Question

Work out the surface area of this Cylinder
Radius= 7cm
Height= 12cm

Answer 1

The  surface area of the cylinder is 835.24 square centimeters

How to determine the surface area?

The given parameters are:

Radius= 7cm

Height= 12cm

The surface area is calculated using:

$A = 2\pi r(h + r)$

So, we have:

A = 2 * 3.14 * 7 * (12 + 7)

Evaluate the expression

A = 835.24

Hence, the surface area of the cylinder is 835.24 square centimeters

Read more about areas at:

https://brainly.com/question/24487155

#SPJ1

Answer 2

❒ Question -:

If the radius of a cylinder is 7 cm and the height is 12 cm. Find the S.A (Surface Area)of a cylinder .

❒ Explanation -:

In this question we are provided with the radius of a cylinder that is 7 cm and it is also given that the height of the cylinder is 12 cm. We are asked to calculate the Surface Area of the cylinder.

We know,

$\small\boxed{ \sf{ Surface \: area_{(cylinder)} = 2πr × (h + r)}}$

Substituting the values we get

$\small\sf{ Surface \: area_{(cylinder)} = 2 × 3.14 × 7 × (12 + 7)}$

$\small\rm{ Surface \: area_{(cylinder)} = 2 × 3.14 × 7 × 19}$

$\small\rm{ Surface \: area_{(cylinder)} = 6.28 × 133}$

$\small\rm{Surface \: area_{(cylinder)} = 835.24 \: {cm}^{2} }$

• Hence the surface area of the cylinder is 835.24 cm².