Supplementary.
complementary angles
The two angles are complementary, seeing as they add up to equal 90 degrees.
57
It is 123 degrees because 123+57 = 180 degrees
It is: 180-123 = 57 degrees
Then the two angles are said to be supplementary because they add up to 180 degrees.
complementary angles
180 - 78 = 102 and 180 - 123 = 57
The two angles are complementary, seeing as they add up to equal 90 degrees.
57
It is 123 degrees because 123+57 = 180 degrees
The inner angles of a triangle will always add up to 180. Assuming that this particular triangle is a right triangle (that is, one of it's angles is 90 degrees), you can find the other angle by subtracting the known angles from 180: 180 - 57 - 90 = 33 degrees If the triangle is an equilateral or a scalene triangle, the other angles cannot be calculated without additional information.
The angles are 90 degrees, 57 degrees and the third angle is 33 degrees
180 - 123 = 57 deg
It is: 180-123 = 57 degrees
Five of the six exterior angle measures of a nonregular hexagon measure 55, 60, 69, 57, and 57. what is the measure of the unterior angle adjacent to the sixth exterior angles?
All you have to remember for this question is that opposite angles in a parallelogram are equal. So if you want to find another angle which is 57, just look at the angle directly opposite.