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7.4 Special Quadrilaterals
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Slide 1:
Diapositive
Wiskunde
Middelbare school
havo
Leerjaar 1
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7.4 Special Quadrilaterals
Slide 1 - Diapositive
Planning
New theory
Quiz
Slide 2 - Diapositive
Parallelogram
Slide 3 - Carte mentale
Parallelogram
Write down:
A parallelogram is a quadrilateral where both pairs of opposite sides are parallel.
Slide 4 - Diapositive
Write down:
Has point symmetry
Opposite sides have the same length
Diagonals divide each other in half
Opposite angles are equal
Properties of a parallelogram
Slide 5 - Diapositive
Write down:
A rhombus is a quadrilateral with four equal sides.
Which foto is a rhombus?
A
B
C
D
Slide 6 - Quiz
Write down:
Diagonals are the axes of symmetry
Diagonals are perpendicular
Diagonals are bisectors of te angles
All properties of a parallelogram
Properties of a rhombus
Slide 7 - Diapositive
Trapezium
Write down:
A trapezium is a quadrilateral where at least one pair of opposite sides is parallel.
Slide 8 - Diapositive
Wat do you notice?
Isosceles trapezium
Slide 9 - Diapositive
Write down:
An isosceles triangle has one axis of symmetry.
Isosceles trapezium
Slide 10 - Diapositive
What do you see?
A
Teddy bear
B
Kite
C
Flag
Slide 11 - Quiz
Kite
Write down:
A kite is a quadrilateral where at least one diagonal is an axis of symmetry.
Slide 12 - Diapositive
Quiz
Slide 13 - Diapositive
What is this?
A
Parallelogram
B
Trapezium
C
Kite
D
Rhombus
Slide 14 - Quiz
What is this?
A
Trapezium
B
Isosceles trapezium
C
Kite
D
Parallelogram
Slide 15 - Quiz
What is this?
A
Parallelogram
B
Trapezium
C
Kite
D
Rhombus
Slide 16 - Quiz
What is this?
A
Parallelogram
B
Trapezium
C
Isosceles trapezium
D
Kite
Slide 17 - Quiz
What is this?
A
Parallelogram
B
Trapezium
C
Kite
D
Rhombus
Slide 18 - Quiz
What do you want for homework?
The whole paragraph 7.4
Ex. 39, 44, 48, 49, 51 on page 62
Slide 19 - Sondage
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