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

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.

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.

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.

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

1 answer

The best answer is:

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

This response accurately reflects the method to determine if a triangle is a right triangle by verifying the relationship between the lengths of the sides or the angles. The Pythagorean theorem (a² + b² = c²) is specifically used for right triangles to confirm if they have a right angle.