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Area, perimeter, and volume formulasTechnique

Technique

Area, perimeter, and volume formulas

Name the shape, then run its formula either way

3 min 3 steps

Every formula is an equation with one empty seat. Filling it is legal, which is a pleasant change of pace for me.

Meet it
Run it
Quick check

The first step is free. A free account opens the rest.

Calls on

Area and volume formula listFactKnow the reference sheet before you need it

Used by

Set up a proportion or unit rateTacticLabel every rate with units, then match or cancel them
Area and volume, forward and in reverseTacticWrite the formula, then solve for whatever's missing
Use scale factors for similar figuresTacticFind k, then use the power the measure needs
Pythagorean theorem and trig ratiosTacticTurn one ratio and one side into the whole triangle
Arcs, sectors, chords, and anglesTacticTurn the central angle into a fraction of the circle