Question

how do the perimeters compare? original scaled 4 cm 4 cm 28 cm 28 cm p = 12 cm 4 cm p = 84 cm 28 cm the scaled triangles perimeter is 7 times longer than the original triangles perimeter. the scaled triangles perimeter is 1/7 the length of the original triangles perimeter.

Explanation:

Step1: Identify perimeters

Original perimeter $P_1 = 12$ cm, scaled perimeter $P_2=84$ cm.

Step2: Calculate ratio

Find $\frac{P_2}{P_1}=\frac{84}{12}=7$.

Answer:

The scaled triangle's perimeter is 7 times longer than the original triangle's perimeter.