Complementary angles add up to 90° ---------------------------------------------- Ratio ---------------------------------------------- 7 : 3
---------------------------------------------- Find total parts : ---------------------------------------------- Total parts = 7 + 3 = 10
---------------------------------------------- Find 10 parts : ---------------------------------------------- 10 parts = 90
---------------------------------------------- Find 1 part : ---------------------------------------------- 1 part = 90 ÷ 10 = 9
---------------------------------------------- Find 7 parts : ---------------------------------------------- 7 parts = 9 x 7 = 63
---------------------------------------------- Find 3 parts : ---------------------------------------------- 3 parts = 9 x 3 = 27
-------------------------------------------------------------------------------------------- Answer: The ratio of the two angles are 63:27 --------------------------------------------------------------------------------------------
