Part B.
m∠4 = ◦
If m∠1 = 80°, which angles are supplementary to it?
∠7 and ∠3
∠8 and ∠2
∠5 and ∠6
∠2 and ∠7
What is the sum of two complementary angles?
180°
45°
90°
360°
Two adjacent angles are supplementary. One angle measures 45°. What type of angle is the other angle?
acute
right
obtuse
straight
