Answer:
a) Right angles
b) 6 and 7 (or 5 and 8)
c) 4 and 8 (or 3 and 7)
d) 115°
e) 115°
Step-by-step explanation:
a) You know angle 1 is 90°, a right angle. Because of this, you can safely assume South Street and Main Street are perpendicular to each other. Perpendicular lines make right angles.
Since you know Second Avenue and First Avenue are parallel to each other and South Street is the transversal, you can use that info to find the rest of the answers.
b) Alternate interior angles are angles that are are on the other side of each other of the transversal, and are inside of the parallel lines.
c) Corresponding angles are angles where one is outside a line and the other inside.
d) Angles 4 and 6 make a linear pair. Linear pairs are 180°
e) Angles 3 and 7 are corresponding angles; they are congruent
This might sound confusing, so if you need clarification, feel free to ask.
