Measurement rules

Front

What is the area formula for a rectangle?

Back

Area = length × width

Front

What is the area formula for a triangle?

Back

Area = 0.5 × base × height

or

Area = base x height ÷ 2

Front

What is the area formula for a parallelogram?

Back

Area = base × height

Front

Rule for circumference of a circle

Back

C= π x D

or

C= 2x π x r

Front

Volume rule for prism

Back

Volume = base area x height