Math Vocabulary Shape and Space

An angle that is less than 90 degrees

• Acute angle

• Degree

• Right angle

• Obtuse angle

The unit of measure for angles

• Angle

• Degrees

• Dimensions

• Formula

A closed shape with only straight lines

• Shape

• Triangle

• Irregular

• Polygon

A polygon with all equal sides and angles

• Polygon

• Irregular polygon

• Regular polygon

• Shape

An angle that is greater than 90 degrees

• Acute angle

• Right angle

• Obtuse angle

• Irregular angle

How many degrees are in a circle?

• 100

• 180

• 360

• 5 000

How many degrees is a straight angle?

• 5

• 180

• 360

• 80 million

An angle that is bigger than 180 degrees

• Acute angle

• Straight angle

• Reflex angle

• Obtuse