All about Shapes Properties of Shapes Number of
All about Shapes
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
How many lines of symmetry has a Square got?
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
How many lines of symmetry has a Rectangle got?
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
How many lines of symmetry has a Parallelogram got? None!
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
How many lines of symmetry has a Rhombus got?
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
How many lines of symmetry has a Trapezium got? None!
How many lines of symmetry has this. Trapezium got?
Properties of a Trapezium Has unequal sides One pair of opposite sides are parallel Usually has NO lines of symmetry Is an irregular shape
What shape is this?
A Kite
How many lines of symmetry has a Kite got?
Properties of a Kite Has 2 pairs of equal sides Has 1 pair of equal angles Equal sides are adjacent Has 1 line 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
How many lines of symmetry has an Equilateral Triangle got?
Properties of an Equilateral Triangle Has 3 equal sides Has 3 equal angles Each angle is a 60 o angle Has 3 lines of symmetry Is a regular shape
What type of triangle is this?
An Isosceles Triangle
How many lines of symmetry has an Isosceles Triangle got?
Properties of an Isosceles Triangle Has 2 equal sides Has 2 equal angles Has 1 line of symmetry Is an irregular shape
What type of triangle is this?
A Scalene Triangle
How many lines of symmetry has a Scalene Triangle got? None!
Properties of an Scalene Triangle Has NO equal sides Has NO equal angles Has NO lines of symmetry Is an irregular shape
What type of triangle is this?
A Right Angled Triangle
A Right Angled Triangle is different 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
Triangles Shapes with 3 sides!
Key Words Regular Shape Parallel Perpendicular Vertex Diagonal Bisect
Regular Shapes are regular when All their sides are the same length All their angles are the same size
Parallel Lines are parallel when they are always the same distance apart.
Perpendicular Lines are perpendicular when they meet at right angles.
Vertex A Vertex is a corner of a shape where two lines meet.
Diagonal A Diagonal is a straight line that joins one corner (vertex) of a shape to a non adjacent corner (vertex)
Bisect A line that cuts a shape exactly in half, Bisects the shape
Key Words Regular Shape Parallel Perpendicular Vertex Diagonal Bisect
Polygons Shapes with many sides!
What shape is this?
A Hexagon
How many lines of symmetry has 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
How many lines of symmetry has 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!
Lines of Symmetry - Look at these shapes Can you suggest a rule?
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
Look at these shapes Heptagon Octagon How many lines of symmetry?
Lines of symmetry Heptagon 7 Octagon 8
Lines of symmetry Heptagon Octagon 7 8 Thank U
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