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Radius of a Sector of a Circle is 7 Cm. If Measure of Arc of the Sector is - (2) 210° Find the Area of the Sector - ICSE Class 10 - Mathematics

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Question

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

(2) 210° find the area of the sector

Solution

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

(2) Measure of arc of the sector = θ = 210º
∴ Area of the sector = \[\frac{\theta}{360º  } \times \pi r^2 = \frac{30°  }{360º } \times \frac{22}{7} \times \left( 7 \right)^2\]  = 89.83 cm

  Is there an error in this question or solution?
Solution Radius of a Sector of a Circle is 7 Cm. If Measure of Arc of the Sector is - (2) 210° Find the Area of the Sector Concept: Perimeter and Area of a Circle.
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