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What is the length of QR

What is the length of QR-example-1
User LiuXiMin
by
7.6k points

2 Answers

9 votes

Answer:

QR=8

Explanation:

so using the fact that the two triangles are congruent, we can determine:

5n-7=3n-1

5n-6=3n

2n-6=0

n=3

so we replace all n in 5n-7 with three

5x3-7

15-7

8

User Ka
by
8.2k points
5 votes

Answer:

8

Explanation:

Set 3n-1=5n-7.

Solve.

n=3.

Plug in 3 to 5n-7.

QR=8

User Shubhamhackz
by
7.8k points

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