Area of sector of angle θ = ×R2Where θ = angle , r = radius of circle Here θ = p and radius = R Area of sector of angle p = (R2) Multiply and divide by 2, Area of sector of angle p = ()(2R2) Hence, (D) is the correct answer

Q. 144.1( 165 Votes )

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Class 10th NCERT - Mathematics 12. Areas Related to Circles

Answer :

Area of sector of angle θ = ×R²

Where θ = angle , r = radius of circle

Here θ = p and radius = R

Area of sector of angle p = (R²)

Multiply and divide by 2,

Area of sector of angle p = ()(2R²)

Hence, (D) is the correct answer

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