Given that ∠a≅∠b , gavin conjectured that ∠a and ∠b are complementary angles. which statement is a counterexample to gavin 's conjecture? m∠a=30° and m∠b=60° m∠a=25° and m∠b=25° m∠a=10° and m∠b=15° m∠a=45° and m∠b=45°

A counterexample is a special kind of example that disproves a statement or proposition.

Given that ∠A is congruent to ∠B, this means that the measure of angle A is equal to the measure of angle B.

Two angles are said to be complementary if their sum is 90 degrees.

Consider, m∠A=25° and m∠B=25°, clearly, ∠A≅∠B, but m∠A + m∠B = 25° + 25° = 50°.

Thus, ∠A≅∠B , but ∠A and ∠B are not complementary angles.