Rectangular area = length x width letter: axb
Cube circumference = side length x4 letter 4a
Square area = side length x side length letter: axa
Triangle area = base x height /2 letters: ah/2
Trapezoidal area = (upper bottom+lower bottom) x height /2 letters: (a+b)xc/2.
Surface area of cuboid = (length x width+length x height+width x height) x2 letter: (axb+axh+bxh)x2.
Cuboid volume = length x width x height letter: axbxh
Surface area of cube = side length x side length x6 letter: axax6
Cube volume = side length x side length x side length letter: axaxa
Surface area of cylinder = radius x radius xπx2+2x radius xπx High letter: rxrxπx2+2xrxπxh.
Cylinder volume = radius x radius x pi x pi x high letter: rxrxπxh
Cone volume = radius x radius x pi x height /3 letters: rxrxπxh/3