A sector of radius 14 cm has an area of 154 cm2. Find the angle of the sector.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 90
Area of sector = (θ/360) × πr2
154 = (θ/360) × π × 142
154 = (θ/360) × π × 196
154 = (θ/360) × 616
θ = (154 × 360)/616 = 90°
Therefore, the angle of the sector is 90°.