In the figure, RQS QLK.

Triangle ABC is a right triangle.

Given: intersects at point C. Prove: DCB ECA

Angles 1 and 2 form a right angle.

Lines DE and AB intersect at point C.

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.

Triangle ABC is a right triangle.

Angle B measures 60°. What is the measure of the angle that is complementary to angle B?
Two lines are intersected by a third line.





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 °.
The figure shows three lines that intersect at point N.

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