B 110 degrees C 70 degrees D 110 degrees
A pair of supplementary angles add up to 180 degrees. In this instance, the supplement of an angle of 70 degrees is 180 - 70 = 110 degrees.
Exterior angle of any plane figure total 360 degrees, so 360 - (110 + 100) ie 360 - 210 = 150
77 degrees
an obtuse angle
B 110 degrees C 70 degrees D 110 degrees
The 3rd angle is: 180-55-80 = 45 degrees
It is an obtuse triangle
21 An angle of 110 degrees is an obtuse angle.
A pair of supplementary angles add up to 180 degrees. In this instance, the supplement of an angle of 70 degrees is 180 - 70 = 110 degrees.
An angle that measures 210 degrees is a reflex angle.
It is obtuse isosceles.
180 degrees and 115 degrees
Exterior angle of any plane figure total 360 degrees, so 360 - (110 + 100) ie 360 - 210 = 150
An angle of 110 degrees is an obtuse angle because it is greater than 90 but less than 180 degrees.
right triangle
a right angle measures 90 degrees