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Math formulas

TermDefinition
Circumference of a circle C=pi*d or C=pi2r or 2pi*r
Area of a square a2
area of a rectangle l x w
area of a triangle 1/2 base time height
area of a circle pi x r^2
area of a trapezoid h(l1+l2)/2 or 1/2 (base 1 +base 2) x height
Pythagorean Theorem a^2 + b^2 + c^2 (used to find the lengths of a triangle
elipses pi x radius of 1 x radius of the other
surface area of a cylinder 2 x pi x r x (h+r) or 2 x B +ch (B= area of base, c=circumfrence)
surface area of a rectangle/ cube 2lw + 2hw + 2lw
surface area of a sphere 4 x pi x r^2
cone surface area pi x r x (r+ square root of [r^2+h^2])
surface area of a square pyramid s (s+2l)
volume of a cube l x l x l
volume of a cylinder pi x r^2 x h or V=B x h (B=area of base)
area of a rectangle l x w x h
area of a sphere 4/3 x pi x r^3
volume of a cone 1/3 x pi x h x r^3
volume of a square pyramid 1/3 x s^2 x h (s=base)
volume of a rectangular prism l x w x h
area of base? 1/3 A x h?
 

 



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