Measuring Acute and Obtuse Angles with a Protractor

What is the maximum degree measure for an acute angle?

• Less than 90 degrees

• More than 90 degrees

• Exactly 90 degrees

• 180 degrees

Tags

CCSS.4.G.A.1

What type of angle is exactly 90 degrees?

• Straight angle

• Acute angle

• Obtuse angle

• Right angle

Tags

CCSS.4.G.A.1

When measuring an acute angle, which numbers on the protractor are not used?

• Less than 90

• More than 90

• Exactly 180

• None of the above

Tags

CCSS.4.MD.C.6

Where should the vertex of the angle be placed on the protractor?

• Outside the protractor

• At the 90° mark

• At the 50° mark

• At the 0° mark

Tags

CCSS.4.MD.C.6

What happens if the bottom line of the angle is not aligned properly on the protractor?

• The protractor breaks

• The angle measurement remains accurate

• The angle appears smaller

• The angle appears larger

Tags

CCSS.4.MD.C.6

What is the minimum degree measure for an obtuse angle?

• More than 90 degrees

• Exactly 90 degrees

• Less than 90 degrees

• 180 degrees

Tags

CCSS.4.G.A.1

When measuring an obtuse angle, which numbers on the protractor are used?

• More than 90

• Exactly 180

• None of the above

• Less than 90

Tags

CCSS.4.MD.C.6

How can you ensure you are reading the correct measurement for an obtuse angle?

• Align the vertex at any number

• Use the numbers over 90

• Ignore the numbers on the protractor

• Use the numbers less than 90

Tags

CCSS.4.MD.C.6

What range did the measured obtuse angle fall into in the video?

• Less than 90 degrees

• Between 90 and 100 degrees

• Between 130 and 140 degrees

• Exactly 180 degrees

Tags

CCSS.4.G.A.1

What specific degrees did the obtuse angle measure close to in the video?

• 100 or 105 degrees

• 133 or 134 degrees

• 120 or 125 degrees

• 150 or 155 degrees

Tags

CCSS.4.MD.C.6