Go Math! Chapter 11

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

• Protractor

• Ruler

• Professional

• Half circle

The unit used for measuring angles

• Inches

• Degree

• Ounces

• Centimeters

The opposite directions the hands of a clock move

• Clockwise

• Counterclockwise

• 2:00

• Vertical

The direction which the hands of the clock move

• Horizontally

• Counterclockwise

• Vertically

• Clockwise

What part of the circle is shaded red?

• 1/4

• 3/4

• 1/2

• 1/12

What part of the circle is not shaded red?

• 1/4

• 3/4

• 2/4

• 3/12

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

• 180 degrees

• 90 degrees

• 270 degrees

• 360 degrees

If you are measuring an angle, what number does one of the rays have to pass through on your protractor to get an accurate measurement?

• 0

• 90

• 75

• 181

Angle CDE measures 180 degrees. It is split into two equal angles. What is the measure of the two new angles?

• 80

• 90

• 45

• 360

David splits a right angle into two equal parts. What is the measure of the two new angles?

• 45

• 180

• 90

• 23