Question

The radius of a sector of a circle is 7 cm. If the measure of the arc of the sector is - 30^°  find the area of the sector in case.

Answer 1

The radius of the sector of the circle, r = 7 cm
 Measure of arc of the sector = θ = 30º
∴ Area of the sector = \[\frac{\theta}{360°} \times \pi r^2 = \frac{30°}{360°} \times \frac{22}{7} \times \left( 7 \right)^2\]  = 12.83 cm²