Measuring Angles

Pre
Test Questions

1. What is the name of the tool that we use to measure angles?

a. Ruler

b. Compass

c. String

d. Protractor

2. When talking about angles, a ray is

a. The point where the lines meet

b. One of the sides of an angle

c. The area inside the angle

d. The area outside the angle

3. A vertex is

a. The point where the lines meet

b. One of the sides of an angle

c. The area inside the angle

d. The area outside the angle

4. If we label an angle as angle CAB, the "A" is

a. The top ray

b. The bottom ray

c. The vertex

d. The area inside the angle

5. A right angle is

a. 25 degrees

b. 180 degrees

c. 270 degrees

d. 90 degrees

6. An acute angle is

a. 90 degrees

b. less than 90 degrees

c. more than 90 degrees

7. An obtuse angle is

a. 90 degrees

b. less than 90 degrees

c. more than 90 degrees

8. There are two numbers on a protractor for each degree. If the angle is
an acute angle you should

a. Read the smaller number

b. Read the larger number

9. If the angle is an obtuse angle, you should

a. Read the smaller number

b. Read the larger number

10. At what point on a protractor is there only one number

a. 45 degrees

b. 90 degrees

c. 180 degrees