#### Question

Radius of a sector of a circle is 7 cm. If measure of arc of the sector is -

(3 ) three right angles; find the area of the sector

#### Solution

Radius of the sector of the circle, *r* = 7 cm

(3) Measure of arc of the sector = *θ* = 3 × 90º = 270º

∴ Area of the sector =

\[\frac{\theta}{360° } \times \pi r^2 = \frac{270° }{360° } \times \frac{22}{7} \times \left( 7 \right)^2\] = 115.5 cm

^{2}

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Solution Radius of a Sector of a Circle is 7 Cm. If Measure of Arc of the Sector is - (3 ) Three Right Angles; Find the Area of the Sector Concept: Perimeter and Area of a Circle.