right angle
supplementary angles
Draw angle C and bisect it into A & B.
they add up to 180 so it depends. you have to know one of the measures
The transitive property is if angle A is congruent to angle B and angle B is congruent to angle C, then angle A is congruent to angle C.
The angles are supplementary if they have a sum of 180 degrees.
76
for a+ NEVERIn a parallelogram opposite angles are equal. Thus angle c = angle a = 40o.The sum of all the angles in a quadrilateral is 360o, so:angle a + angle b + angle c + angle d = 360o=> 40o + angle b + 40o + angle d = 360o=> angle b + angle d = 280o.
Angle b is acute angle, if any angle less than 90 degrees then it is called acute angle if more than 90 degrees then it is obtuse angle if it is equal to 90 degrees then it is right angled
angle B and angle D are supplements, angle B is congruent to angle D, angle A is congruent to angle A, or angle A is congruent to angle C
An angle which has measure between 90 degrees and 180 degrees is an obtuse angle.
The second angle? angle B?
Given an angle A whose measure is in the range [0, 180] degrees, the supplementary angle to A is the angle B such that the measure of A + B = 180 degrees.