Properties of quadrilaterals
The Maths Habit
Sam turns this square. Sam says it is not a square any more. Is Sam correct?
No. Turning it does not change its sides or its corners. It is still a square.
Which pair of lines is parallel?
B: they go the same way and never meet
Which corner is a right angle?
C: a square corner, a quarter turn
- Quadrilateral
- A flat shape with four straight sides.
- Parallel
- Lines that go the same way and never meet. Arrows show them.
- Right angle
- A square corner. A small square shows it.
- Equal sides
- Sides that are the same length. Dashes show them.
- 1Parallel sidesLook for the arrows. The same arrows show a pair.
- 2Right anglesLook for the small squares.
- 3SidesLook for the dashes. The same dashes mean the same length.
- 4NameUse the boxes you ticked to name the shape.
Two pairs of parallel sides
equal
all equal
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Tick the boxes. Name each shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
How many pairs of parallel sides?
Fewer parallel sides
1 pair of parallel sides
no parallel sides
two pairs of equal sides next to each other
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Tick the boxes. Name the shape.
Tick the boxes. Name the shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Tick the boxes. Name each shape.
| 4 right angles | no right angles | |
|---|---|---|
| all equal | square | rhombus |
| not all equal | rectangle | parallelogram |
Is the name correct? Thumbs up or thumbs down.
Answer sheet
Is a square a rectangle? Explain.
Yes, it has 4 right anglesCan a trapezium have a right angle? Draw one to show it.
Yes, it can have twoWhich shapes have 2 pairs of parallel sides?
square, rectangle, rhombus, parallelogram
Tick the boxes. Name the shape.1 Parallel sides2 pairs1 pairnone2 Right angles4none3 Sidesall equalnot all equal
4 Name = parallelogramTick the boxes. Name the shape.1 Parallel sides2 pairs1 pairnone2 Right angles4none3 Sidesall equalnot all equal
4 Name = kiteName the shape.
Name = rhombus