What is the area of a sector of a circle of radius 14 cm and central angle 45?
(Take π = 22/7)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e 77 cm2
The area of a sector of a circle = (θ / 360)πr2
⇒ θ = 45o , r = 14cm
⇒ A = (θ / 360)πr2
⇒ A = (45 / 360) × (22 / 7) × 142
⇒ A = (1 / 8) × 28 × 22
⇒ A = 77cm2