June 26, 2019
Triangle
Square
Rectangle
Rhombus
Rhomboid
A = b · h
Area of Trapezoid
Area of a regular polygon
Area of a polygon
The area is obtained by triangulating the polygon and adding the area of these triangles.
A = T1 + T2 + T3 + T4
Circle Area
Circular Sector Area
Area of a Circular Segment
The circular area of the segment AB = Area of the circular sector AOB - Area of triangle AOB
Lune of Hippocrates
Area of the lune = area of the semicircle − area of circular segment.
Area Enclosed between Two Concentric Circles
Area of a Circular Trapezoid
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