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miss Akunina [59]
3 years ago
8

If BC = 7 and CD = 24, find AC.

Mathematics
1 answer:
vodomira [7]3 years ago
3 0

Answer:

  2√42 ≈ 12.961

Step-by-step explanation:

All of the right triangles are similar, so ...

  short leg/long leg = BC/AC = AC/CD

  AC² = BC·CD = 7·24 = 168

  AC = √168 = 2√42

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