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An equation that show a relation amoung certain quantities


A quadrilateral with one pair of parallel sides


The shortest distance form the base of a parallelogram to its opposite side


Any side of a parallelogram


The distance around a closed geometric figure


The number of square units needed to cover a surface enclosed by a gerometric figure


perimeter of a rectangle

p= 2L+2W

Area of a trapezoid

A= 1/2 h(b1+b2)

Area of a triangle

A+ 1/2 bh

Area of a parallelogram

A= bh

Area of a rectangle

A= lw

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