Question -
Answer -
Area of a sector of angle p (in degrees) of a circle with radius R is
(A) p/180 × 2πR (B) p/180 × π R_2
(C) p/360 × 2πR (D) p/720 × 2πR_2
Solution:
The area of a sector = (θ/360°)×πr2
Given, θ = p
So, area of sector = p/360×πR2
Multiplying and dividing by 2 simultaneously,
= (p/360)×2/2×πR2
= (2p/720)×2πR2
_So, option (D) is correct