Question

Ted says that the triangle below cannot be classified because all sides are different lengths. Is Ted correct? Explain why or why not.

Answer 1

Ted is wrong

The triangle is a right triangle because of the right 90° angle formed at the bottom.

Answer 2

Ted's statement is wrong because the equation is true for Pythagoras theorem

Checking if the triangle is a right triangle

From the question, we have the following parameters that can be used in our computation:

The triangle

Where, we have the following side lengths

12.42, 9.5 and 8

Using the Pythagoras theorem, we have

12.42² = 9.5² + 8²

Evaluate

154.25 = 154.25

Using the above as a guide, we have the following:

Ted is wrong because the equation is true for Pythagoras theorem