Go Math Chapter 11 Test

1. What is the tool used for measuring the size of an angle?

• protractor

• professional

• ruler

• half circle

The unit used for measuring angles is

• inches

• ounces

• degrees

• centimeters

What fraction of the circle is shaded red?

• 1/4

• 1/2

• 3/4

• 1/12

What part of the circle is not shaded red?

• 1/4

• 1/2

• 3/4

• 1/12

The direction which the hands of the clock move is called

• horizontal

• vertical

• counterclockwise

• clockwise

The opposite direction the hands of a clock move is called

• clockwise

• 2:00

• counterclockwise

• vertical

The arrow shows how a ray moved through a circle. Which statement best describes the turn?

• ¼ turn clockwise

• ¼ turn counterclockwise

• ½ turn clockwise

• ¾ turn counterclockwise

How many degrees are in an angle that turns through 1/2 of a circle?

• 180 degrees

• 90 degrees

• 270 degrees

• 360 degrees

In degrees, what is the angle measure of the shaded part? THINK:  $360\ \div\ 8\ =??$  

• 80

• 90

• 45

• 360

An angle measuring 90° turns through a circle. Write the fraction for how much of the circle the angle turns through.

• 90/360

• 45/360

• 45/90

• 90/180