All about Shapes Ask Boffin!
Properties of Shapes Number of sides Number of angles Number of lines of symmetry Regular or irregular Right Angles Parallel lines
Shapes Triangles Quadrilaterals Polygons Regular Shapes Key Words
Quadrilaterals Shapes with 4 sides!
What shape is this?
A Square
Properties of a Square Has 4 equal sides Has 4 equal angles Each angle is a right angle Has 4 lines of symmetry Is a regular shape
What shape is this?
A Rectangle
Properties of a Rectangle Has 2 pairs of equal sides Has 4 equal angles Each angle is a right angle Has 2 lines of symmetry Is an irregular shape
What shape is this?
A Parallelogram
Properties of a Parallelogram Has 2 pairs of equal sides Has 2 pairs of equal angles Opposite sides are parallel Has NO lines of symmetry Is an irregular shape
What shape is this?
A Rhombus
Properties of a Rhombus Has 4 equal sides Has 2 pairs of equal angles Opposite sides are parallel Has 2 lines of symmetry Is an irregular shape
What shape is this?
A Trapezium
Properties of a Trapezium Has unequal sides One pair of opposite sides are parallel Usually has NO lines of symmetry Is an irregular shape
Quadrilaterals Shapes with 4 sides!
Triangles Shapes with 3 sides!
What type of triangle is this?
An Equilateral Triangle
Properties of an Equilateral Triangle Has 3 equal sides Has 3 equal angles Each angle is a 60o angle Has 3 lines of symmetry Is a regular shape
What type of triangle is this?
A Right Angled Triangle
A Right Angled Triangle is different It may be scalene or it may be isosceles But it always has a right angle!
Properties of a Right Angled Triangle Has 1 right angle May be an isosceles triangle May have 1 line of symmetry Is an irregular shape It will be isosceles and have 1 line of symmetry when these 2 sides are equal.
Triangles Shapes with 3 sides!
Key Words Regular Shape Parallel Perpendicular Vertex Diagonal Bisect
Regular Shape Shapes are regular when All their sides are the same length All their angles are the same size
Polygons Shapes with many sides!
What shape is this?
A Hexagon
Properties of a Regular Hexagon Has 6 equal sides Has 6 equal angles Has 6 lines of symmetry
What shape is this?
A Pentagon
Properties of a Regular Pentagon Has 5 equal sides Has 5 equal angles Has 5 lines of symmetry
Polygons Shapes with many sides!
Regular shapes All the sides are the same length All the angles are equal Have the same number of lines of symmetry as the number of sides