geometry unit 1 quiz 3

4. Choose the best answer. Which is an acute angle?

'/__ABC' is smaller than a right angle so it is acute

3. Select 2 that apply. Which two angles are complementary? ______ and _____

'm /__ ABC+/__DCB=90^@'

18.Which two angles are supplementary?

'm/___EFG+'m/___GFH=180^@'

16.Which two angles are adjacent?

/___ABC and /___DBC

14.Choose the best answer Which is a straight angle?

/___ABG

9. Choose the best answer Which angle is obtuse?

/___CBG is larger than a right angle

8. Choose the best answer. Which is a right angle?

/___DBG has a square box in the vertex indicating that it is a right angle

17.Which two angles are vertical angles?

/___EFG and /___BFH

6. Choose the best answer Which two angles form a linear pair of angles? ____ and ____

/___EFG and /___GFH

11.Choose the best answer. Use the protractor in the monitor to measure /___EFG

120^@

7. Choose true or false True or false: A pair of adjacent angles whose noncommon sides are two opposite rays that form a straight line are vertical angles.

False: A pair of adjacent angles whose noncommon sides are two opposite rays that form a straight line are a linear pair of angles

20.True or False: A ray that bisects an angle into two congruent angles is a linear pair of angles.

False: A ray that bisects an angle into two congruent angles is an angle bisector.

10. Choose true or false True or False: The set of points between the two sides of an angle is an angle bisector.

False: The set of points between the two sides of an angle is the interior of the angle

5. Choose true or false. True or false: set of points outside an angle is a supplementary angle.

False: The set of two points outside an angle is the exterior angle.

2. Choose true or false True or false: Two angles that share a common vertex and one common side but no common interior points are vertical angles.

False: Two angles that share a common vertex and one common side but no common interior are adjacent angles.

1. Choose true or false True or false: the common endpoint of the rays of an angle is called a vertex.

True: The vertex is the common endpoint of the rays of an angle.

15.True or false: Two nonadjacent angles formed by two intersecting lines are vertical angles

True: Two adjacent angles formed by two intersecting lines are vertical angles

19.True or False: Two angles in which the sum is '90^@ are complementary angles

True: Two angles in which the sum of their measures is '90^@' are complementary

13.Choose true or false True or false: an angle is a formed by two rays with a common endpoint

True: an angle is a figure formed by two rays with a common endpoint

12.Choose true or false. True or False: Two angles in which the sum of the measure is '180^@ are supplementary angles.

True: two angles in which the sum of the measure is '180^@ are supplementary angles