If sum of two angles is 180**°** , then they are called supplementary angles.

If sum of two angles is 90**°** , then they are called complementary angles.

(i) 65**° **+ 115**°** = 180**°** These are supplementary angles.

(ii) 63**°** + 27**°** = 90**°** These are complementary angles.

(iii) 112**°** + 68**°** = 180**°**These are supplementary angles.

(iv) 130**°** + 50**°** = 180**°** These are supplementary angles.

(v) 45**°** + 45**°** = 90**°** These are complementary angles.

(vi) 80**°** + 10**°** = 90**°** These are complementary angles.