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Alex73 [517]
3 years ago
11

Given that the triangles are similar, find the value of x. Find the length of NR. S T 40 60 R 2x-2 8


N
M
X=
NR =

Mathematics
1 answer:
andrew-mc [135]3 years ago
6 0

Answer:

NR = 12

Step-by-step explanation:

Given that both trjangles are similar, therefore, it follows that their corresponding side lengths would be proportional to each other. Thus:

\frac{40}{8} = \frac{60}{2x - 2}

5 = \frac{60}{2x - 2}

Cross multiply

5(2x - 2) = 60

10x - 10 = 60

10x = 60 + 10 (addition property of equality)

10x = 70

Divide both sides by 10

x = 7

✔️NR = 2x - 2

Plug in the value of x

NR = 2(7) - 2 = 14 - 2

NR = 12

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