You measure it very, very carefully!
the angle on a straight line is 180 degrees, the angle of semicircle at centre is 180 degrees
Subtract the angle from 90 degrees and you have the complement Subtract the angle from 180 degrees and you have the supplement
To find a complementary angle, subtract the given angle from 90 degrees, since two angles are complementary if their sum equals 90 degrees. For example, if you have an angle of 30 degrees, its complementary angle would be 90 - 30 = 60 degrees. This method applies to any angle less than 90 degrees.
A straight angle measures 180 degrees. To find the degrees of a part of a straight angle, you can use a protractor to measure the angle or use mathematical calculations if you know the relationships between the angles involved. For example, if you have two angles that together form a straight angle, you can subtract one angle from 180 degrees to find the other angle.
To find the reference angle for negative 200 degrees, first convert it to a positive angle by adding 360 degrees, resulting in 160 degrees. The reference angle is then found by subtracting this angle from 180 degrees, yielding a reference angle of 20 degrees. Thus, the reference angle for negative 200 degrees is 20 degrees.
90 degrees
The measurement of angle ABD is 73 degrees. You find this angle by subtracting angle DBC from angle ABC, or 89-16 is equal to 73 degrees.
82 degrees (180 degrees in a triangle)
the supplement of an 82 degrees angle would be 98 degrees. To find the supplement of an angle, take the degrees of the angle you were given and subtract it from 180.
the angle on a straight line is 180 degrees, the angle of semicircle at centre is 180 degrees
Subtract the angle from 90 degrees and you have the complement Subtract the angle from 180 degrees and you have the supplement
67.5 degrees
To find the reference angle for negative 200 degrees, first convert it to a positive angle by adding 360 degrees, resulting in 160 degrees. The reference angle is then found by subtracting this angle from 180 degrees, yielding a reference angle of 20 degrees. Thus, the reference angle for negative 200 degrees is 20 degrees.
179 degrees
To find a coterminal angle, you can subtract or add multiples of 360 degrees. For the angle 534 degrees, you can subtract 360 degrees: 534 - 360 = 174 degrees. Therefore, the coterminal angle of 534 degrees is 174 degrees.
62
56 degrees