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29. In the figure below, line m is parallel to line n, and line t is a transversal crossing both m and n. Which of the following lists have 3 angles that are all equal in measure?

A. a, b, c
B. a, c, d
C. a, c, e
D. b, c, d

30. How many diagonals can be drawn in a regular hexagon?

a. 7
b. 8
c. 9
d. 10

31. A hexagon has 5 angles with measures of 142, 84, 123, 30, and 90. What is the measure of the 6th angle?

a. 250°
b. 251°
c. 360°
d. 720°

32. What is the sum of the interior angles of a polygon with 12 sides?

a. 180°
b. 1800°
c. 2000°
d. 2040°​