Area of a Circluar Sector (in Radian)
How to find the area of a circular sector when the central angle is given in radian: formula, example, and its solution.
Recall the area of a circular sector (in degree):
A = πr2⋅[(degree)/360]
[π/180]⋅(degree) = θ (radian)
r = 6, θ = 2π/3
A = (1/2)⋅62⋅(2π/3)