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put this solution on YOUR website!ANY TWO ANGLES THAT ADD UP TO 90 DEGREES ARE COMPLEMENTARY & FORM A RIGHT ANGLE THUS:
30 DEGREES + 60 DEGREES = 90 DEGREES ( A RIGHT ANGLE)
42 DEGREES + 48 DEGREES = 90 DEGREES
6 DEGREES + 84 DEGREES =90 DEGREES
24 DEGREES + 66 DEGREES = 90 DEGREES