Consider aabc, where zc = 90° and za + 2b = 90°
click on the statements that are true about the relationships of the angles. to change an answer, click again
angles a and b are complementary angles.
if sin a -0.766, then sin b -0.766.
if sin a
0.766, then cos b 0.766.
if cos b -0.766, then the sin a - 0.766,