Using the diagram above, what is the angle measure of ∠1? What angle relationship did you use?
Using the diagram above, what is the angle measure of ∠2? What angle relationship(s) did you use?
A store owner uses pieces of tape to paint a window advertisement. The letters are slanted at an 80° angle. What is the measure of ∠1?
Given the following diagram, what is the least number of angle measures you need to know in order to find the measure of every angle?