Use facts about supplementary complementary vertical and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure.
Sample Practice Questions (3)
1
In the diagram below, ∠ABC is a right angle. If the measure of ∠ABD is 32∘, what is the measure of ∠DBC?
In a diagram of two intersecting lines, ∠1 and ∠3 are vertical angles, and ∠1 and ∠2 are supplementary. If m∠1=(4x−20)∘ and m∠3=(2x+30)∘, what is the measure of ∠2?