Question

If the circumference of a circular sheet is given 157 m find its radius also find the area of the sheet

Answer 1

Answer:

$2\pi r \: = \: 157 \\ r \: = \: \frac{157}{2} \pi \\ r \: = \: \frac{157}{2} \times \frac{22}{7} \\ r \: = \: 246.71 \: m \\ the \: area \: of \: sheet \: = \: 2\pi r \\ = 2 \times \frac{22}{7} \times 246.71 \\ = \frac{10855.24}{7} \\ = 1550.75 \: m$