RemarkableOpen the app

Remarkable / Worksheets / Grade 6 Maths / 2D shapes and types of angles

Grade 6 Maths: 2D shapes and types of angles poster

A one-page CAPS Grade 6 Maths poster on 2D shapes and types of angles (Shapes and space), with the key ideas, key words and a tip to remember.

CAPS Grade 6MathsShapes and spaceFree
Maths · Grade 6 · Shapes and space
2D shapes and types of angles

1Types of angles

  • Acute: less than 90°. Right: exactly 90°.
  • Obtuse: between 90° and 180°. Straight: exactly 180°.
  • Reflex: between 180° and 360°. Revolution: 360°.
a = 130°

2Polygons

A polygon is a closed shape with straight sides. It is named by its number of sides.

  • 3 triangle, 4 quadrilateral, 5 pentagon
  • 6 hexagon, 7 heptagon, 8 octagon

3Regular and irregular

A regular polygon has all sides equal and all angles equal. If not, it is irregular.

Example

Regular hexagon: 6 equal sides

4Quadrilaterals

  • Rectangle: 4 right angles. Square: 4 equal sides and 4 right angles.
  • Parallelogram: opposite sides equal and parallel.
  • Rhombus: 4 equal sides. Kite: 2 pairs of equal sides next to each other.
  • Trapezium: exactly 1 pair of parallel sides.

5Rectangle or parallelogram?

Both have opposite sides equal and parallel. A rectangle also has 4 right angles. A parallelogram that is slanted has no right angles.

6Circles

The radius goes from the centre to the edge. The diameter goes all the way across through the centre. The diameter is 2 times the radius.

Example

Radius 6 cm: diameter 12 cm
Diameter 20 cm: radius 10 cm

Key words

acute angle
an angle smaller than a right angle
obtuse angle
an angle between 90° and 180°
reflex angle
an angle between 180° and 360°
polygon
a closed shape with straight sides
parallel
always the same distance apart, never meeting
Remarkable · remarkablereports.com

For your students

Learners can practise this topic for free with a short quiz and flashcards, with no sign-up. Open the 2D shapes and types of angles revision.

More Grade 6 Maths

Whole numbersNumbersPoster · One A4 pageFreePrime numbers, factors and multiplesNumbersPoster · One A4 pageFreeAdding and subtracting whole numbersCalculationsPoster · One A4 pageFreeMultiplicationCalculationsPoster · One A4 pageFreeDivisionCalculationsPoster · One A4 pageFreeOrder of operationsCalculationsPoster · One A4 pageFree

See every Grade 6 Maths resource