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How is the answer 16? Please explain

How is the answer 16? Please explain-example-1
User Wig
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1 Answer

6 votes
Triangle STU is similar to triangle SVW
so

TU ST
------- = ---------- (as you know SV = ST + TV = 12 + 18 = 30)
VW SV
so
TU 12
------- = ----------
40 30

TU = 12 * 40 / 30
TU = 16

answer
16 inches
User Oswaldo Acauan
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