Question

Suppose a triangle has sides 1, 1, and 1. Which of the following must be true?

A. The triangle in question is not a right triangle.
B. The triangle in question may or may not be a right triangle.
C. The triangle in question is a right triangle.

Answer 1

The hypotenuse of a right triangle is the longest side, therefore it cannot be a right triangle.

Answer 2

A triangle of equal length sides is an equilteral triangle. All of the interior angles are 60 degrees.

Answer 3

A. is the answer.