1.
An acute angle is the name given to any angle whose measure is less than 180º.

Choose:
 TRUE FALSE

2.
An obtuse angle has a measure between ___º and ___º.

Choose:
 0º and 90º 45º and 90º 90º and 180º 0º and 180º

3.
Two vertical angles measure x and 76º. How many degrees are represented by x?

Choose:
 14º 38º 76º 104º

4.
ABC is bisected by a ray from B through D. If mABC = 78º, what is the mABD?

Choose:
 34º 39º 78º 156º

5.
a) Angles 1 and 2 are called _________.
Choose:
 vertical angles adjacent angles obtuse angles acute angles

b)
Angles 1 and 2 are _________.
Choose:
 equal in measure complementary right angles supplementary

Two straight lines
intersecting.

6.
Two complementary angles measure x and 55º. How many degrees are represented by x?

Choose:
 35º 45º 125º 135º

7.
Two supplementary angles measure (5x - 30)º and (x + 90)º. What is the measure of the larger angle?

Choose:
 20º 70º 110º 170º

8.
In the diagram at the right,
mABC = m∠ABD + ______.

Choose:
 m∠DBA m∠DBC m∠CBA m∠DCB

9.
Three straight lines intersect as shown.
If m∠1 = 24º find m∠2.

Choose:
 24º 66º 76º 114º

10.
Three straight lines intersect as shown.
Find
m∠ABC.

Choose:
 32º 64º 122º 132º