Which one of the following is the area of a sector of a circle of radius 10 cm formed by an arc length of 15 cm?
10π cm²
15π cm²
75 cm²
150 cm²
Answer is Wrong!
Answer is Right!
This question was previously asked in
UPSC CAPF – 2018
Area = (1/2) * r * L
where ‘r’ is the radius of the circle and ‘L’ is the length of the arc that forms the sector.
Given:
Radius (r) = 10 cm
Arc length (L) = 15 cm
Area = (1/2) * 10 cm * 15 cm
Area = 5 cm * 15 cm
Area = 75 cm²