The angle x in the figure is:
30°.
70°.
100°.
80°.
If one of the angles of a triangle (BAC) is 130°, then what is angle BOC?
145°.
155°.
65°.
50°.
The sum of the interior angles of a triangle is:
120°.
90°.
360°.
180°.
In the figure, the value of y is:
45°.
150°.
60°.
