Question

if the radius of a cylinder is 8 foot and height is 12 feet what is its surface area​

Answer 1

Question :–

If the radius of a cylinder is 8 foot and height is 12 feet what is its surface area.

Given :–

• Radius of a cylinder = 8 foot.
• Height of cylinder = 12 feet.

To Find :–

• Surface area of a cylinder.

Formula :–

→ $\boxed{\sf\blue{2 \pi rh + {2 \pi r}^{2}}}$←

Solution :–

[ Put the values on the formula ]

→ $2 \times \frac{22}{7} \times 8 \times 12 + 2 \times \frac{22}{7} \times {8}^{2}$

→ $2 \times \frac{22}{7} \times 8 \times 12 + 2 \times \frac{22}{7} \times 64$

→ $\frac{4224}{7} + \frac{2816}{7}$

→ $\frac{4224 + 2816}{7}$

→ $\sf1005.31 \: {ft}^{2}$

Hence,

The surface area of a cylinder is $\sf1005.31 \: {ft}^{2}$