Question

the perimeter of △abc is 13 cm. it was dilated to create △abc. what is the perimeter of △abc? o 13 cm o 26 cm o 39 cm o 52 cm

Explanation:

Step1: Find dilation factor

Dilation factor $k=\frac{OB'}{OB}=\frac{5 + 15}{5}=4$

Step2: Calculate new perimeter

New perimeter = original perimeter $\times k=13\times4 = 52$ cm

Answer:

52 cm