10. Which of the following are the possible lengths to complete a triangle with side lengths of 14 in. and 8 in.?
A greater than 6 in., less than 20 in.
B greater than 6 in., less than 22 in.
C greater than 4 in., less than 20 in.
D greater than 4 in., less than 22 in.
11. Two angles lie along a straight line. If $m\angle A$ is four times the sum of $m\angle B$ plus 17.5°, how many degrees is $m\angle B$?
12. A triangular piece of fabric has side lengths of 3 inches, 4 inches, and 5 inches. Will it fit in the corner of a rectangular quilt? Explain.
A Yes, because it is a right triangle.
B Yes, because it is an isosceles triangle.
C No, because it is an equilateral triangle.
D No, because it is an obtuse triangle.
13. How many degrees is the sum of the measures of the interior angles of a regular polygon with 14 sides?
A 150° C 2,160°
B 1,800° D 2,520°
14. In the figure, $m\angle 1 = (5x)^\circ$, $m\angle 2 = (4x + 10)^\circ$, and $m\angle 3 = (10x - 5)^\circ$. What is $m\angle 3$, in degrees?
15. In $\triangle PQR$, how many degrees is $m\angle Q$?