Two complementary angles add up to 90 degrees.
If one is 30 degrees, the other has to be a 60 degree angle
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If their measures add up to be 90 degrees, they are complementary. If they add up to 180 degrees they are supplementary (sometimes are called a linear pair). For example, if I have two angles, a 30 degree angle and a 45 degree angle, they are not complementary because they add up to 75, not 90. However, if I have two angles measured 30 degrees and 60 degrees, they are complementary because they add up to 90 degrees.
The takeoff for a 30 degree angle will depend with the offset angle.
Yes and they are both acute angles
a 60-degree angle
A 30 degree angle is an acute angle because it is greater than 0 but less than 90 degrees.