Grade 6 Angles & Polygons

The space between two intersecting line.

• Angle

• Decimal

• Degree

• Intersection

What we call each side of an angle

• Line

• Arm

• Vertex

• Parallel

An angle measuring 90°

• Acute

• Obtuse

• Right

• Reflex

• Straight

An angle measuring 180°

• Acute

• Obtuse

• Straight

• Reflex

• Right

An angle that measures less than 90°

• Acute

• Obtuse

• Straight

• Reflex

• Right

An angle that measures between 90° and 180°

• Acute

• Obtuse

• Straight

• Reflex

• Right

An angle that measures between 180° and 360°

• Acute

• Obtuse

• Straight

• Reflex

• Right

An instrument for measuring angles, typically in the form of a flat semicircle marked with degrees along the curved edge

• Protractor

• Ruler

• Compass

A unit used to measure the size of an

angle; the symbol is °.

• Degree

• Celcius

• Angle

• Centimeter

An angle inside a polygon

• Exterior Angle

• Interior Angle

• Corner

• Angle