A single angle can only add up to its own value! And how can a single angle be congruent? There have to be at least two angles for them to be congruent (or not).
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Complimentary angles ARE NOT always congruent. However, if one angle is 45 degrees, then they would be congruent since the other would have to be 45 degrees to add up to 90 degrees.
It is 15 degrees because complementary angles add up to 90 degrees
A pair of complementary angles add up to 90 degrees. Therefore, the complement of a 70 degree angle is 90 - 70 = 20 degrees.
Angle q will be less than 90 degrees because a right angle is 90 degrees and the 3 angles in a triangle add up to 180 degrees.
Complementary angles total 90°. The complement (or complementary angle) of 15° is 75° (90 - 15).