Question

identify the type of proof given. △abc is a right triangle, m∠c = 90°. given. m∠a + m∠b + m∠c = 180°. triangle sum theorem. m∠a + m∠b + 90° = 180°. substitution property of equality. m∠a + m∠b = 90°. subtraction property of equality. ∠a and ∠b are complementary angles. definition of complementary angles. two - column proof. geometric proof. paragraph proof. flow - chart proof.

Explanation:

The proof is presented in a table with two columns. One column lists statements and the other gives the reasons for those statements, which is characteristic of a two - column proof.

Answer:

Two - column proof