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Aleks [24]
3 years ago
10

Chords and Arcs.

Mathematics
1 answer:
harina [27]3 years ago
7 0
It looks like you want to find the short leg (x) of a right triangle with long leg 15 and hypotenuse 18. The Pythagorean theorem gives the relationship between the sides of a right triangle.
  18² = 15² + x²
  324 = 225 + x²
  x² = 324 - 225 = 99
  x = √99 ≈ 9.9

The appropriate choice is ...
  b) 9.9
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