McGraw Hill Integrated II, 2012
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McGraw Hill Integrated II, 2012 View details
4. Proving Triangles Congruent-ASA, AAS
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Exercise 15 Page 369

Consider which sides are corresponding.

y=5

Practice makes perfect
We are searching for a value of y that will create congruent sides and angles of these two triangles. First, let's use some colors to indicate the corresponding vertices in the given congruence statement. △ MH J ≅△ PQ J Then, we can display them on the diagram.
For now, let's focus on the side that has a length given in the diagram and the corresponding side in the other triangle. H JandQ J Since these are corresponding sides in congruent triangles, their measures are the same. This allows us to set up and solve an equation for y.
HJ=QJ
9= 2y-1
â–Ľ
Solve for y
10=2y
5=y
y=5
The value that makes H J and Q J and all other corresponding measurements congruent is y=5.