Quadrilaterals Flashcards Preview

Abi Mathematics 2015 > Quadrilaterals > Flashcards

Flashcards in Quadrilaterals Deck (14):
1

What is a quadrilateral?

A quadrilateral is any two dimensional four sided shape.

2

What are the properties of a quadrilateral?

It has four sides
It has four angles
The sum of the interior angles is 360°

3

How can we classify quadrilaterals?

Into parallelograms and non-parallelograms.

4

How can we classify parallelograms?

Into rectangles, rhombi and squares.

5

What are the properties of parallelograms?

Opposite sides are parallel
Opposite sides are equal
Opposite angles are equal
Diagonals bisect each other (cut each other in half)

6

What are the properties of rectangles?

Opposite sides are parallel
Opposite sides are equal
Opposite angles are equal to 90°
Diagonals bisect each other (cut each other in half)
Diagonals are equal

7

What are the properties of rhombi?

Opposite sides are parallel
All sides are equal
Opposite angles are equal
Diagonals bisect each other (cut each other in half)
Diagonals bisect at 90°
Diagonals bisect corner angles

7

What are the properties of squares?

Opposite sides are parallel
All sides are equal
Corner angles are equal to 90°
Diagonals bisect each other (cut each other in half)
Diagonals bisect at 90°
Diagonals bisect corner angles
Diagonals are equal

8

What are the properties of kites?

Have two pairs of adjacent sides that are equal
Have one pair of opposite angles that are equal
The shorter diagonal is bisected by the longer diagonal
Diagonals intersect at 90°
One diagonal bisects the corner angles

9

What are the properties of trapeziums?

One pair of opposite sides are equal

10

What are the properties of right angled trapeziums?

One pair of parallel lines
One right angle

11

What are the properties of isosceles trapeziums?

One pair of opposite sides is parallel
One pair of opposite sides is equal
Two pairs of adjacent angles are equal

12

How can we classify non-parallelograms?

Into kites and trapeziums

13

How can we classify trapeziums?

Into right angled trapeziums and isosceles trapeziums.