Acute, Right and Obtuse Angles

An acute angle measures:

• 90 degrees

• Greater than 90 degrees

• Less than 90 degrees

Tags

CCSS.4.G.A.1

An obtuse angle measures:

• 90 degrees

• Greater than 90 degrees

• Less than 90 degrees

Tags

CCSS.4.G.A.1

Perpendicular lines cross and always make a ___ angle.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Draw an obtuse angle

Tags

CCSS.4.G.A.1

Name the angle

• obtuse

• straight

• right

• acute

Tags

CCSS.4.G.A.1

What degree is a Right Angle?

• 90 degrees

• 180 degrees

• 45 degrees

Tags

CCSS.4.G.A.1

What angles measurement is between 0 and 90 degrees?

• Right angle

• Acute Angle

• Obtuse Angle

Tags

CCSS.4.G.A.1

An obtuse angle is...

• greater than 90 degrees but less than 180 degrees

• 90 degrees

• 45 degrees

• 180 degrees

Tags

CCSS.4.G.A.1

Look around the room. Find an object that has an angle. Type the object and identify if it is a right, obtuse, or acute angle.

Tags

CCSS.4.G.A.1

What items can be identified that we see every day can be seen as a right angle?

Multiple answers

• doors

• windows

• stairs

• picture frame

Tags

CCSS.3.G.A.1