Identifying Right, Acute, and Obtuse Angles

What is an angle formed by?

• The width of a line

• The space between two intersecting lines at a vertex

• The curve between two points

• The length of a line

Tags

CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

What tool can be used to verify if an angle is a right angle?

• Ruler

• Compass

• Right angle tester

• Protractor

Tags

CCSS.4.MD.C.6

What defines a right angle?

• Less than 90 degrees

• Exactly 90 degrees

• 180 degrees

• More than 90 degrees

Tags

CCSS.4.G.A.1

Which type of angle is smaller than a right angle?

• Reflex angle

• Acute angle

• Straight angle

• Obtuse angle

Tags

CCSS.4.G.A.1

How can you check if an angle is acute using a right angle tester?

• If it fits exactly

• If it is smaller than the tester

• If it is larger than the tester

• None of the above

Tags

CCSS.4.G.A.1

What is the characteristic of an obtuse angle?

• Larger than a right angle but smaller than a straight line

• Smaller than a right angle

• More than 180 degrees

• Exactly 90 degrees

Tags

CCSS.4.G.A.1

How can a right angle tester be used with obtuse angles?

• To confirm it is less than 90 degrees

• To confirm it is more than 90 degrees

• It cannot be used

• To measure the exact degrees

Tags

CCSS.4.MD.C.6

Why is it useful to make your own right angle tester?

• To draw perfect circles

• To measure distances

• To measure weight

• To understand angles better

Tags

CCSS.4.MD.C.6

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CCSS.RI.1.6

CCSS.RI.1.7

CCSS.RI.5.7

CCSS.RL.2.7

CCSS.RL.3.7

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