In a circle
radius = 7 cm
arc subtends an angle of 60° at a centre
find area of sector?
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Area of the sector will be 77/3 cm^2 .
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Given :-
radius of circle ( r ) = 7 cm
arc subtends an angle at centre ( θ ) = 60°
Find :-
- Area of Sector
Solution :-
Area of a sector = θ/360∘ × π × r²
= 60 ° / 360 ° × 22/ 7 × ( 7 × 7 ) cm ²
= 1 / 6 × 22 / 7 × 49 cm ²
= 1 / 3 × 11 × 7 cm²
= 77 cm ² / 3
= 25 . 66 cm ²
Hence, area of sector is 25. 66 cm ².
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