Page 62 - Key Stage 3 Geometry
P. 62
As you can see, quadrilaterals take on many forms;
they are distinguished by having:
• Two or more parallel sides
• Two or more right-angles
• Two or more equal size angles
From the diagrams on the previous page can you
identify which quadrilaterals have these features? The
rhombus is a diamond shape and the rectangle is also
known as an oblong. A concave quadrilateral has an
o
internal angle larger than 180 and looks like an arrow
head.
The rhombus on the other
hand is an interesting shape –
it’s all a matter of perspective.
Looking at the chequered
pattern, the pattern closest to
the base of the diagram is made up of squares.
However as you look further away from the base, each
black and green square transforms into a rhombus.
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