TRIANGLE
SQUARE
RECTANGLE
TRAPEZOID
POLYGON
PERIMETER
AREA
EXAMPLE
h
b
a
c
P = a + b + c
A = (b x h)/2
a= 2ft , b= 3ft, c= 2ft, h= 3ft
P = a + b + c
P = 2 + 3 + 2
P = 7 ft
A = (b x h)/2
A = (3 x 2)/2
A = 6/2
A = 3ft2
AREA
PERIMETER
The definition of the area of a polygon is the measure of the area that is enclosed by it. As polygons are closed plane shapes, thus, the area of a polygon is the space that is occupied by it in a two-dimensional plane.
The perimeter of a polygon is defined as the sum of the length of the boundary of the polygon. In other words, we say that the total distance covered by the sides of any polygon gives its perimeter.
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