Question

1. quadrilateral a has side lengths 6, 9, 9 and 12. quadrilateral b is a scaled copy of quadrilateral a with its shortest side of length 2. what is the perimeter of quadrilateral b? draw a scaled copy of polygon a using a scale factor of 2. draw a scaled copy of polygon b using a scale factor of 1/2. draw a scaled copy of polygon c using a scale factor of 3/2.

Explanation:

Step1: Find side - lengths of B

Side - lengths of A are 6, 9, 9, 12. Scale factor for B is $\frac{1}{3}$. New side - lengths are $6\times\frac{1}{3}=2$, $9\times\frac{1}{3}=3$, $9\times\frac{1}{3}=3$, $12\times\frac{1}{3}=4$.

Step2: Calculate perimeter of B

Perimeter = $2 + 3+3 + 4=12$.

Answer:

12