Acute, Right, and Obtuse Angles

Front

What is an Acute Angle?

Back

An angle that measures less than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is a Right Angle?

Back

An angle that measures exactly 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is an Obtuse Angle?

Back

An angle that measures more than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

What is the measurement range of an Acute Angle?

Back

Between 0 and 90 degrees.

Tags

CCSS.4.G.A.1

Front

What is the measurement of a Right Angle?

Back

90 degrees.

Tags

CCSS.4.G.A.1

Front

What is the measurement range of an Obtuse Angle?

Back

Greater than 90 degrees but less than 180 degrees.

Tags

CCSS.4.G.A.1

Front

How can you identify an Acute Angle visually?

Back

It appears sharp and is smaller than a right angle.

Tags

CCSS.4.G.A.1

Front

How can you identify a Right Angle visually?

Back

It forms a perfect corner, like the corner of a square.

Tags

CCSS.4.G.A.1

Front

How can you identify an Obtuse Angle visually?

Back

It looks wider than a right angle and is larger than 90 degrees.

Tags

CCSS.4.G.A.1

Front

What type of angle is 45 degrees?

Back

Acute Angle.

Tags

CCSS.4.G.A.1