Question

angles 1 and 2 form a right angle which word describes their measures? linear congruent complementary supplementary

Explanation:

• Linear: Linear angles form a straight line (\(180^{\circ}\)), but here the angle formed is a right angle (\(90^{\circ}\)), so this is incorrect.
• Congruent: Congruent angles have equal measures. There is no information given that \(\angle1=\angle2\), so this is incorrect.
• Complementary: Complementary angles are two angles whose sum is \(90^{\circ}\) (a right - angle). Since angles 1 and 2 form a right - angle, \(\angle1+\angle2 = 90^{\circ}\), so they are complementary.
• Supplementary: Supplementary angles are two angles whose sum is \(180^{\circ}\). Since the angle formed by \(\angle1\) and \(\angle2\) is \(90^{\circ}\), this is incorrect.

Answer:

C. complementary