Problem 1102

Complete the sentence below.

On a circle of radius r, a central angle of θ radians subtends an arc of length s = …………..; the area of the sector formed by this angle θ is A = ………………

 

Solution:-

 

On a circle of radius r, a central angle of θ radians subtends an arc of length s = r θ; the area of the sector formed by this angle θ is A = \frac{1}{2} r2 θ.

 

 

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