Question: what is the formula of area of minor sector?
Answer: Area of Sector Radians Radians are based on π (a circle is 2π radians), so what you really did was replace n°360° n ° 360 ° with θ2π θ 2 π . When θ2π θ 2 π is used in our original formula, it simplifies to the elegant (θ2) × r2 ( θ 2 ) × r 2 .