Question

In the scale drawing below, each side is.38 cm long. Use the scale factor shown. What is the perimeter of the actual object? I cm - 6.5 m O A. 12.35 m O B. 52.25 m C. 42 m D. 61.75 m

Answer 1

The scaled perimeter of the polygon is,

$\begin{gathered} P=5\times0.38 \\ P=1.9\text{ cm} \end{gathered}$

The expression to calculate the actual perimeater is,

$\text{Actual Perimeter=P}\times Scale\text{ factor.}$

Here, scale factor is 6.5 cm.

$\begin{gathered} \text{Actual Perimeter=1.9}\times6.5 \\ =12.35\text{ cm} \end{gathered}$

Thus, the actual perimeter of the polygon is 12.35 cm.