Question

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.

Answer 1

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 2

Answer : the triangle in question is a right triangle.

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Why??

The pythagorean theorem is,


`{a}^(2) + {b}^(2) = {c}^(2)`

Plug in the numbers,


`{3}^(2) + {4}^(2) = {5}^(2)`

↑

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