Starting with the formula for area of a circle: A=1/2 ab sin (C)
C being the angle between the two known sides.
A = 1/2 r² sin θ
The answer is B but how is this so. This means that sin θ = θ - sin θ, yet this is not true. If θ were π/2, the LHS would be 1 whilst the RHS would be π/2 - 1.
