How can you tell if a triangle is a right triangle with one 90 degree angle?

Question

Choose the best answer.

(1 point)
Responses

You would have to know two of the angles or all three sides to test the Pythagorean theorem.
You would have to know two of the angles or all three sides to test the Pythagorean theorem.

Draw the triangle and use a protractor to measure the length of the sides and angles.
Draw the triangle and use a protractor to measure the length of the sides and angles.

Plot the triangle on the coordinate plane and use the coordinates to see if the triangle is a right triangle.
Plot the triangle on the coordinate plane and use the coordinates to see if the triangle is a right triangle.

Look and see if the triangle looks like it has two perpendicular sides.

Answer 1

The best answer is:

You would have to know two of the angles or all three sides to test the Pythagorean theorem.

This option correctly describes the necessary conditions for determining whether a triangle is a right triangle. Specifically, you can use the Pythagorean theorem (a² + b² = c²) with the lengths of the sides to verify if one angle is 90 degrees.