How many triangles can be drawn with side lengths of 3 units, 4 units, and 5 units? Explain.

Question

blackbarbie · Answer

So there are only two triangles that we can construct with side lengths 3, 4, and 5, and they happen only when the angle opposite the side with length 5 is a right angle. So if a triangle has side lengths 3, 4, and 5 units, it must be a right triangle.

Bexley · Answer

@blackbarbie wrote:

So there are only two triangles that we can construct with side lengths 3, 4, and 5, and they happen only when the angle opposite the side with length 5 is a right angle. So if a triangle has side lengths 3, 4, and 5 units, it must be a right triangle.

oh ok that makes sense, thank you