Question

Read the following conditional statement:

If one of the angles of a triangle equals 90º, then the triangle is classified as a right triangle.

Which of the following choices is the first step of an indirect proof?

If the triangle is a right triangle
If the triangle is not a right triangle
If the triangle equals 90º
None of these choices are correct.

Answer 1

Answer/Step-by-step explanation:

C., the first proof we would be given if a little box is shown, which indicates a 90 degree angle at the place where to lines touch in a T kind of manor. So C is the answer.