Which statements are true about the angles in the diagram? Select three options.
Rectangle QRST is shown. Angle QRT is congruent to angle STR, and angle STR is complementary to angle QTR.

Angles A and B are complementary.

Given: intersects at point C. Prove: DCB ECA

Which statements are true about the angles in the diagram? Select three options.
Two lines are intersected by a third line.





Angles 1 and 2 form a right angle.

Given:1 is complementary to 2. 2 is complementary to 3.Prove:m1 = m3





Given:1 is complementary to 2. 2 is complementary to 3.Prove:m1 = m3





Points A, B, and C are on line AC.

Angle B measures 60°. What is the measure of the angle that is complementary to angle B?
The figure shows three lines that intersect at point N.

Triangle ABC is a right triangle.

Angles A and B are supplementary. Angle A has a measure of 80°. What is the measure of angle B? The measure of angle B is °.
Figure LMNO is a parallelogram.Angles L and M are supplementary. What is the sum of their measures? The sum of the measures of angles L and M is °.
Angle B measures 60°. What is the measure of the angle that is complementary to angle B?
Lines DE and AB intersect at point C.

Points A, B, and C are on line AC.

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