AREA
Triangle = 1/2(bxh)
Rectangle = lxw
Trapezoid = 1/2 (b1+b2)h
Circle = πr2
Parallelogram = bxh
CIRCUMFERENCE
radius= 2 πr
diameter = πd
diameter = πd
VOLUME
Rectangular Prism = length x width x height
Cube = s3
Pyramid = 1/3 x area of base x height
Cylinder = base x height
Cone = 1/3 (bh)
1/3 (πr2 h)
Sphere = 4/3 πr3