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.
a square
a quadrilateral
Rectangle
A kite.
This is a quadrilateral. It could be a symmetric trapezium /
a square
No, a rectangle cannot have no equal sides. By definition, a rectangle is a quadrilateral with opposite sides that are equal in length, which means it must have at least two pairs of equal sides. If all sides are of different lengths, it would be classified as a general quadrilateral, not a rectangle.
A quadrilateral with 2 pairs of equal sides could be a parallelogram, a trapezoid, a kite, or a rectangle. If all 4 sides are equal, then it could also be a rhombus or a square.
a quadrilateral
rectangle
Rectangle
yes
rectangle
A kite has two pairs of equal sides with no parallel sides.
A parallelogram
A parallelogram is such a shape.
rectangle