Determine if a triangle is right using the converse of the Pythagorean theorem Trigonometry

Determine whether the following triangles are right.

This is a right triangle.

This is not a right triangle.

This is a right triangle.

This is not a right triangle.

This is a right triangle.

This is not a right triangle.

This is a right triangle.

This is not a right triangle.

This is a right triangle.

This is not a right triangle.

This is a right triangle.

This is not a right triangle.

This is a right triangle.

This is not a right triangle.