You measure it very, very carefully!
Subtract the angle from 90 degrees and you have the complement Subtract the angle from 180 degrees and you have the supplement
the angle on a straight line is 180 degrees, the angle of semicircle at centre is 180 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.
56 degrees
To find an acute angle you need to find out if it is less than 90 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
62
56 degrees
Angle 1 = 30 degrees Angle 2 = 50 degrees Angle 3 = 100 degrees.