Geometry Flash Cards

Acute Triangle

• 3 acute angles

• 1 right angle and 2 acute angles

• 2 obtuse angles and 1 acute angle

• 3 right angles

Tags

CCSS.4.G.A.2

line

• 
• plane

• curve

• segment

Tags

CCSS.4.G.A.1

Right Triangle

• 1 right and 2 acute angles

• 3 right angles

• 2 obtuse angles and 1 acute angle

• All angles are acute

Tags

CCSS.4.G.A.2

Ray

• 
• A type of fish

• A unit of measurement

• A beam of light

Tags

CCSS.4.G.A.1

Straight Angle

• An angle that is exactly 90 degrees.

• An angle that is exactly 180 degrees.

• An angle that is less than 90 degrees.

• An angle that is more than 180 degrees.

Tags

CCSS.4.G.A.1

Obtuse Angle

• An angle that is less than 90 degrees.

• An angle that is exactly 90 degrees.

• An angle that is more than 90 degrees but less than 180 degrees.

• An angle that is more than 180 degrees.

Tags

CCSS.4.G.A.1

Right Angle

• An angle that is exactly 90 degrees.

• An angle that is less than 90 degrees.

• An angle that is greater than 90 degrees but less than 180 degrees.

• An angle that is exactly 180 degrees.

Tags

CCSS.4.G.A.1

Obtuse Triangles

• 1 obtuse and 2 acute angles

• 3 acute angles

• 1 right and 2 obtuse angles

• 2 obtuse and 1 acute angle

Tags

CCSS.4.G.A.2

Line Segment

• 
• A line that extends infinitely in both directions.

• A figure formed by connecting three or more points.

• A straight path that has no thickness and extends infinitely.

Tags

CCSS.4.G.A.1

Acute Angle

• An angle that is less than 90 degrees.

• An angle that is exactly 90 degrees.

• An angle that is greater than 90 degrees but less than 180 degrees.

• An angle that is equal to 180 degrees.

Tags

CCSS.4.G.A.1