EXAMPLES!!!!!
Example #1-What is the perimeter of a rectangle having side-lengths of 3.4 cm and 8.2 cm? Since a rectangle has 4 sides, and the opposite sides of a rectangle have the same length, a rectangle has 2 sides of length 3.4 cm, and 2 sides of length 8.2 cm.
answer- The sum of the lengths of all the sides of the rectangle is 3.4 + 3.4 + 8.2 + 8.2 = 23.2 cm.
Example #2-What is the perimeter of a square having side-length 74 cm? Since a square has 4 sides of equal length, the perimeter of the square is 74 + 74 + 74 + 74 = 4 × 74 = 296.
Perimeter&Area! for Polygons
A PERIMETER is a path that surrounds an AREA. The word comes from the Greek peri (around) and meter (measure). The term may be used either for the path or its length; it can be thought of as the length of the outline of a shape. The PERIMETERr of a circular area is called circumference PERIMETER is about the distance around all of a shape for e.g. circle , the perimeter around a circle is called a circumference . The PERIMETER of a polygon is the sum of the lengths of all its sides.
EXAMPLES!!!!!Example #1-What is the perimeter of a rectangle having side-lengths of 3.4 cm and 8.2 cm? Since a rectangle has 4 sides, and the opposite sides of a rectangle have the same length, a rectangle has 2 sides of length 3.4 cm, and 2 sides of length 8.2 cm.
answer- The sum of the lengths of all the sides of the rectangle is 3.4 + 3.4 + 8.2 + 8.2 = 23.2 cm.
Example #2-What is the perimeter of a square having side-length 74 cm? Since a square has 4 sides of equal length, the perimeter of the square is 74 + 74 + 74 + 74 = 4 × 74 = 296.