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math formulas 2012

my math formulas for the pass test

QuestionAnswer
area if a rectangle area is equal to a=l*w
area of a parallelogram A=B*H
volume of a rectangle prism V=l* W *H
surface area of a rectangular prism S.A.= 2lh+2lw +2wh
area of a triangle A=(B*H)/2
circumference 0f a circle C=2*pi*r OR C=pi*d
area of a circle A=pi*r*r
area a trapezoid A=(b1+b2) *h/2
pi =3.14(decimal form)22/7 (fraction form)
Created by: blainemorris
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