Trimester 2

Perimeter

the distance around a given shape.

Formulas:

  • Perimeter of Rectangle: ( 2 x length) + (2 x Width)

  • Perimeter of a Square: 4 x Length of one side

  • Equilateral triangle: 3 x Length of one side

Finding the Missing Side

Step 1: Add up all of the given sides

Step 2: Subtract it from the given perimeter

Step 3: Fill in the missing side.