Well honey, the missing angle of a triangle can be found by subtracting the sum of the other two angles from 180 degrees. So in this case, 180 - (42 + 89) = 49 degrees. So grab your protractor and get that angle measured, darling!
Chat with our AI personalities
it is an acute angle
an acute angle
If they are the angles of a triangle then the missing angle is 116 degrees
The supplementary angle to 42 degrees is 138 degrees
180-89= 91 degrees