Measuring Angles

TEK 6.8C Obj 4

Pretest

 

1. A Protractor is-
a. A device used for making a perfect circle
b. A device used for measuring circumference
c. A device used for measuring the number of degrees in an angle
d. A device used for measuring the number of degrees in a circle

2. If an angle has 90 degrees, it is said to be
a. A right angle
b. An obtuse angle
c. An acute angle

3. An obtuse angle is
a. The same as a right angle
b. More than 90 degrees
c. Less than 90 degrees
d. The same as an acute angle

4. This angle is-

a. an acute angle
b. a right angle
c. an obtuse angle

5. When naming parts of this angle, which is correct?

a. ACB
b. ABC
c. CAB

6. In the angle above, the vortex is at point
a. A
b. B
c. C

7. In the angle above, the line from B to A is
a. The vortex
b. The Angle
c. One of the Rays

8. When measuring an acute angle, you should read the lesser number
a. True
b. False

9. When measuring an obtuse angle, you should
a. Assume the angle is 90 degrees
b. Read the larger number
c. Read the smaller number

10. The marking for 90 degrees is
a. A right angle
b. At the very top of the protractor
c. The only spot on the protractor where there is only one number
d. All of these

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