Refer to the figure at the right. Line s is parallel to linet, m 2 is 110° and m211 is 137º. Find each given angle
measure. Justify your answer.
13
3/4
5
17. m26
11/12
10/9
8
6
18. mZ13
19. m24
20. CCSS Model with Mathematics Draw a pair of parallel
lines cut by a transversal. Estimate the measure of one angle
and label it. Without using a protractor, label all the other angles
with their approximate measure.