Perimeter

Perimeter
Rectangles & Squares.

Perimeter
Measures the distance around the edge of any flat object.  To find the perimeter of any figure, ADD the lengths of its sides.
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What is a rectangle?
A rectangle has:  4 sides  4 square corners or right angles  Opposite sides are of equal lengths  Opposite sides are directly across from each other

To find the perimeter of a rectangle:
18 15
Use the formula P= 2 x length + 2 x breath P= 2 x 18 + 2 x 15 P= 36 + 30= 66

Or ……. You can always add the sides. P= 18 + 18 +15 +15= 66

What is a square?
A square has:
 

4 equal sides 4 right angles

To find the perimeter of a square:
Use the formula:
P = 4 x side  P = 4 x 3 = 12
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3 3

Or . . . . You can add the sides. P = 3 + 3 + 3 + 3 = 12

Thank you.