The 3 properties of shapes that we are going to look at are # The number of sides # The interior angles (the angles inside). # The length of the sides. These properties help use to remember which shapes are which and why they so called (in some cases). Let us look at shapes that have 4 sides Quadrilaterals (Quad- means 4). Quadrilaterals ALWAYS have 4 sides The interior angles of a triangle add up to 360 degrees. Here are the quadrilaterals you are expected to know about. # Square # Rhombus # Rectangle # Parallelogram # Trapezium # Kite That does not seem to many does it. Let us look at the properties of quadrilaterals.
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a square
a quadrilateral
Rectangle
A kite.
This is a quadrilateral. It could be a symmetric trapezium /