Theory
[Definition]
Identify, compare and describe quadrilaterals
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Opposite sides are equal and parallel. |
Rhombus
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Opposite sides are parallel. |
Rectangle
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Opposite sides are parallel and equal. |
Square
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Opposite sides are parallel. |
Kite
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Each two pairs of consecutive sides are equal. |
Trapezium
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Only one pair of opposite sides are parallel. |
Example
[Investigation]
Identify, compare and describe quadrilaterals
Can you name all of these quadrilaterals?
Which of these have equal opposite sides?
Which of these have equal opposite angles?
Which of these have right angles?
Question
Identify, compare and describe the following quadrilaterals
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Please name each shape;
- The shape on the left:
- The shape on the right:
Explanation
The shape on the left is a kite, it has 2 pairs of equal and adjacent sides, and a pair of equal obtuse angles, and 2 acute angles.
The shape on the right is a trapezium, it has 1 pair of parallel lines, 2 obtuse angles and 2 acute angles.
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