1.

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

Answer»

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}


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