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Write the Formula for the Area of a Sector of Angle θ (In Degrees) of a Circle of Radius R. - Mathematics

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Question

Write the formula for the area of a sector of angle \[\theta\] (in degrees) of a circle of radius r. 

Sum

Solution

Let r be the radius of the circle and angle θ subtended at the centre of the circle.

Area of the sector of the circle =`θ/360xxpir^2` 

Therefore, area of the sector is =`θ/360xxpir^2` 

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Chapter 13: Areas Related to Circles - Exercise 13.5 [Page 68]

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RD Sharma Mathematics [English] Class 10
Chapter 13 Areas Related to Circles
Exercise 13.5 | Q 9 | Page 68

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