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Suppose a triangle has sides 3, 4, and 5. Which of the following must be true? A. The triangle in question is a right triangle. B. The triangle in question is not a right triangle. C. The triangle in question may or may not be a right triangle.

Respuesta :

A. The triangle in question is a right triangle. 
For this triangle you can apply Pythagorean theorem.
3²+4²=5²
9+16=25
25=25 
Answer : the triangle in question is a right triangle.

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Why??

The pythagorean theorem is,

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

Plug in the numbers,

[tex] {3}^{2} + {4}^{2} = {5}^{2} [/tex]

↑

This is true

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I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out!!

~Zoey

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