1. Which angles are adjacent angles?
Three lines intersect at point B.
One line goes through point C in the upper left and point M in the lower right.
A second line goes through point Y in the lower left and point X in the upper right.
The third line is horizontal through point F on the left and G on the right. (1 point)
angleGMB and angleFBC
angleCBX and angleFBC
angleXBG and angleFBC
angleMBY and angleFBC
2. Find the sum of the interior angles of a nonagon. (1 point)
140°
1,620°
1,260°
1,450°
3. The measure of angle3 is101º. Find the measure of angle4.
Two lines intersect. The top angle at the intersection is labeled 1. The right angle is labeled 2. The bottom angle is labeled 3. The left angle is labeled 4. (1 point)
79°
106°
74°
101°
4. Find the measure of each interior angle of a regular polygon with 12 sides. (1 point)
1,800°
150°
180°
145°
5. Four of the angles of a pentagon measure 85°, 110°, 135°, and 95°. Find the measure of the missing angle. (1 point)
115°
95°
135°
85°