Elementary Geometry

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Area of a Circle

, where:

A = Area (m2)

= Pi

r = Radius of Circle (m)

Area of a Square

 , where:

A = Area

b = Width

c = Height

Area of a Trapezoid

 , where:

A = Area of a Trapezoid

h = Height of Trapezoid

a = Length of Lower Base

b = Lenght of Lower Base

m = Length of Median

Area of a Triangle

 , where:

A = Area of a Triangle

b = Length of base

c = Height

Circumference of a Circle

, where:

C = Circumference (m)

= Pi

r = Radius (m)

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