EDGE Math 8

Example

Prove that any two right angles are congruent.

Solution

Step 1:

Restate the statement using the if-then form: If

∠ A

and

∠ B

are right angles, then

∠ A ≅ ∠ B .

Step 2:

Visualize what is to be proven by drawing the necessary figure(s).

Step 3:

Assume the hypothesis. List the given statements.

Given:

∠ A

and

∠ B

are right angles.

Step 4:

Establish the truth of the conclusion.

Prove:

∠ A ≅ ∠ B

Proof