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vovangra [49]
3 years ago
7

Find the value of the "?"

Mathematics
1 answer:
Andru [333]3 years ago
3 0

Answer:

45

Step-by-step explanation:

Set up ratios for 2 similar triangles:

20/28=x/x+18

Cross multiply

28x=20x+360

8x=360

x=45

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