Question

ne Practice 13-3 erimeter the perimeter of each figure. 3 cm 7.5 mm 7 km 3 cm 1 m 2 m 5 mm 5 cm 7 km 3 m 7 km 7.5 mm 7 km 2 m + 5. Number Sense What is the perimeter of a square if one of the sides is 3 mi? 30 Ft 30 ft he dimensions of a football field re shown at the right. 300 6

Answer 1

Consider that the perimeter of any geometrical figure is the sum of the lengths of all external boundaries of the figure.

1.

The given diagram is a triangle with sides measuring 3 cm, 3 cm, and 5 cm.

So the perimeter (P) of this triangle will be the sum of its three sides,

`\begin{gathered} P=3\text{ cm}+3\text{ cm}+5\text{ cm} \\ P=11\text{ cm} \end{gathered}`

Thus, the perimeter of the given figure is 11 centimeters.