Find the area of sector of a circle with radius 6cm and of angle 60 degree
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Whenever we are given these types of problems :
Consider π as 3.14 when the radius is not divisible by 7.
If radius was 7 cm then it was OK.
But here radius is 6 cm and so it is better to take π as 3.14 .
Area of sector is given by :
π r² × Ф / 360°
Given Ф = 60° .
Area of sector = π r² × 60° / 360°
= π r² × 1 / 6
= 3.14 × 6 × 6 × 1/6
= 3.14 × 6
= 18.84
The area of sector is 18.84 cm²
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