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liubo4ka [24]
2 years ago
13

The question is listed in the image below.

Mathematics
1 answer:
LenaWriter [7]2 years ago
6 0

Answer:

y = 7

Step-by-step explanation:

The similarity statement ABCD \sim WXYZ tells you which vertex from the first polygon corresponds to which vertex from the second polygon.

A is paired with W, B is paired with X, C is paired with Y, D is paired with Z.

The expression <em>y</em> + 2 is placed along side WZ which corresponds to side AD in the first polygon.

Now locate two sides, one from each polygon, that are labeled with just <u>numbers</u>.  That way, you'll be able to tell what the proportion is between the two shapes.

AB and WX correspond and are labeled 5 and 3, respectively.

Now you can write a proportion:

\frac{WX}{AB}=\frac{WZ}{AD}\\\\\frac{3}{5}=\frac{y+2}{15}

Use the Means-Extremes Property ("cross multiply").

5(y+2)=3(15)\\\\5y+10=45\\\\5y=35\\\\y=7

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