Perimeter and Area
Objective: Learn to find the perimeter and area
The perimeter of a polygon is the distance
around the outside of the polygon.
 The
perimeter is the distance around the outside of
this yard, indicated by the red arrow; It is measured
in linear units such as feet or meters.
To find the perimeter add the length of each side.
Perimeter: 8cm + 8cm + 3cm + 3cm = 22 cm
The formula for perimeter of a rectangle is: P= ( L
+ W) × 2
Your Examples:

Example 1:
A rectangle has a length of 12
centimeters and a width of 3
centimeters.
Find the perimeter

Example 2:
A rectangle has a length of 7
meters and a width of 3
meters. Find the perimeter
To find the perimeter of a regular polygon, multiply
the number of sides by the length of one side.

Find the perimeter of a regular pentagon with each side
measuring 3 inches.
Solution: A pentagon has 5 sides. So you have to
multiply 5 × 3 in = 15 in
Example: Find the perimeter of a regular hexagon with
each side measuring 8 cm.
To find the area of a rectangle or a square…
You
must multiply
the length by the width.

The formula is: A = L × W; where A is the
area, L is the length, and W is the width.

Example:
A rectangle has a length of 8 centimeters and a width of 3
centimeters. Find the area.
Solution: Area = 8 cm × 3 cm = 24 cm2
Homework: Find the Perimeter and Area.
Game
Base (length)
Height (Width)
Tennis (singles)
26 yd
9 yd
Volleyball
60 ft
30ft
Badminton (singles)
44 ft
17 ft
170 m
160m
racquetball
40 ft
20ft
Ice hockey
61 m
30m
NFL Football
360 ft
130 ft
Cricket
Perimeter
Area