Question

polygon y is a scaled copy of polygon x.
polygon x has sides: 4 1/2, 7 1/2, 2
polygon y has sides: 5 5/8, 9 3/8, z
what is the value of z?
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done for now? try these next:

Explanation:

Step1: Convert to improper fractions

$4\frac{1}{2} = \frac{9}{2}$, $5\frac{5}{8} = \frac{45}{8}$

Step2: Find scale factor

$\text{Scale factor} = \frac{45/8}{9/2} = \frac{45}{8} \times \frac{2}{9} = \frac{5}{4}$

Step3: Calculate z

$z = 2 \times \frac{5}{4} = 2.5$

Answer:

2.5