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Canterbury Perimeter and Area Formulas

This activity will help you learn the formulas for our geometry unit.

Tools

A	B
perimeter of a rectangle	P=2(l+w)
perimeter of a square	P=4s
perimeter of a triangle	P=s+s+s
area of a rectangle	A=L*w
area of a square	A=s*s
area of a parallelogram	A=b*h
area of a triangle	A=1/2(b*h)
area of a trapezoid	A=1/2(b+b)h
area of a circle	A=πrr
circumference of a circle	C=π*d