Pregunta
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in says she has memorized the lengths of a few right triangles, for example, 3,4 , and
She is trying to compile a list of several right triangles but needs your help.
select all the lengths of triangles that are right.
(Lesson 3 -14)

Ask by Maxwell Clark. in the United States
Jan 23,2025

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The right triangles are A) 1, 1, √2 and C) 5, 12, 13.

Solución

To determine which sets of lengths form right triangles, we can apply the Pythagorean Theorem, which states that for a right triangle with legs and , and hypotenuse :
Let’s evaluate each option:

A) 1, 1,

  • Identify the largest side: (approximately 1.414)
  • Apply the Pythagorean Theorem:
  • Conclusion: . This satisfies the theorem. Right triangle.

B) 2, 4, 6

  • Identify the largest side: 6
  • Apply the Pythagorean Theorem:
  • Conclusion: . Not a right triangle.

C) 5, 12, 13

  • Identify the largest side: 13
  • Apply the Pythagorean Theorem:
  • Conclusion: . This satisfies the theorem. Right triangle.

D) 8, 9, 64

  • Identify the largest side: 64
  • Apply the Pythagorean Theorem:
  • Conclusion: . Not a right triangle.

E) 7, 19, 22

  • Identify the largest side: 22
  • Apply the Pythagorean Theorem:
  • Conclusion: . Not a right triangle.

Final Answer

Options A and C are the sets of lengths that form right triangles.
Right triangles are those with side lengths A) 1, 1, √2 and C) 5, 12, 13.

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Beyond the Answer

To determine which sets of lengths can form right triangles, we can apply the Pythagorean theorem, which states that for a right triangle with legs and and hypotenuse , the equation must hold true.
So, let’s dive into each option:
A) :
and
B) :
and
C) :
and
D) :
and
E) :
and
So, the lengths that can form right triangles are: A) and C) .
Want to dive deeper into triangles? Right triangles have such storied histories in different cultures, especially in ancient Greece with Pythagoras! He and his followers made significant contributions to understanding these triangles, influencing mathematics for centuries.
For modern-day applications, right triangles are everywhere! From construction to navigation, knowledge of right triangles helps ensure structures are built accurately and calculating distances becomes effortless due to concepts like trigonometric ratios. So, next time you pass a building site or look at a map, you can think of that trusty right triangle!

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