a tool used to measure and draw angles
a unit for measuring angles
an angle less than 90 degrees
an angle equal to 90 degrees
an angle greater than 90 degrees
an angle that measures 180 degrees
Two lines that intersect to form right angles
lines that never intersect
lines that cross at one point
two angles that are right next to each other
equal to, matching
Same side of transversal and same size
These angles are formed by two intersecting lines and have the same measure.
Two angles with a sum of 180 degrees
Two angles with a sum of 90 degrees
A line that intersects two parallel lines.