BagGirl BagGirl
  • 25-07-2017
  • Mathematics
contestada

Which set of side lengths forms a right triangle??

Which set of side lengths forms a right triangle class=

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rbspyro
rbspyro rbspyro
  • 25-07-2017
The answer is D. 15, 36, 39. 

Answer Link
bcalle
bcalle bcalle
  • 25-07-2017
If a^2 + b^2 =c^2, then the triangle is a right triangle

2^2 + 3^2 ??=?? 13^2
4 + 9 ??=?? 169
13 ??=?? 169 FALSE

4^2 + 6^2 ??=??10^2
16 + 36 ??=?? 100
52 ??=?? 100  FALSE

9^2 + 12^2 ??=?? 18^2
81 + 144 ??=?? 324
225 ??=?? 324 FALSE

15^2 + 36^2 ??=?? 39^2
225 + 1296 ??=?? 1521
1521 ??=?? 1521 TRUE            15, 36, 39
Answer Link

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