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harina [27]
3 years ago
9

Question 15

Mathematics
1 answer:
ycow [4]3 years ago
8 0

The perimeter of the smaller triangle is 8+12+16=36.  The big triangle has perimeter 54.  So our scale factor is 54/36=3/2.  So we scale up the short side, 8, by 3/2, giving our answer:

Answer: 12

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