Parallel lines a and b, when cut by transversal m, form eight angles, as shown in the diagram below. Use the diagram for problems 1 and 2.
Two adjacent angles are complementary. Are the angles acute or obtuse?
Which of the following would you use to calculate the measure of ∠7?
180° − m∠8
m∠1 + m∠2
m∠2 + m∠4
What is the measure of an angle that is supplementary to 87°?
In the diagram below, which two angles are adjacent?
∠1 and ∠2
∠2 and ∠3
∠1 and ∠4
Both A and B are correct.