Exercise 7 – 5:
1.Use the sketch of quadrilateralABCDto prove the diagonals of a kite are perpendicular to each other.
A C
B
D
O
2.Explain why quadrilateralW XY Zis a kite. Write down all the properties of quadrilateralW XY Z.
W
Z
Y
X
12
1
21
1
For more exercises, visit http://www.everythingmaths.co.za and click on ’Practise Maths’. 1.2G75 2.2G76
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VISIT:
This video provides a summary of the different types of quadrilaterals and their properties.
See video:2G77atwww.everythingmaths.co.za
Investigation: Relationships between the different quadrilaterals
Heather has drawn the following diagram to illustrate her understanding of the relationships between the dif-
ferent quadrilaterals. The following diagram summarises the different types of special quadrilaterals.
Parallelogram
Rectangle
Square
Rhombus
Quadrilateral Trapezium
Kite
260 7.3. Quadrilaterals