Know Your Keywords — Math, Standard
Point 16 — Lines and angles
What do we see?
Angles given in variables.
What do we understand?
Determine the number of unique angles by assuming one such case, then express the rest in terms of it.
Question 1 of 3

In the figure given below, the lines a and b are parallel to each other, and the lines c and d are parallel to each other. Find the sum of the measures of 2 obtuse angles and 2 acute angles so formed (in degrees).