Area Of Plane End Faces Of Right Circular Cylinder Formula

Equation for calculate area of plane end faces of right circular cylinder is,

S_B = (Πr²) + (Πr × √(r²+((a-b)/2)²) )

Where,
S_B = Area of the Base
r = Radius
a = Greatest Height of a Side (h1)
b = Shortest Height of a Side (h2)