How_To_Be_Good_At_Math

GEOMETRY • QUADRILATERALS 217

TRY IT OUT

Skewed shapes

Look at the square and the rhombus below. The

rhombus looks like a skewed version of the

square, as if it has been pushed sideways. Now

look at the rectangle. If you skewed it in the

same way, what shape would you get?

Answer on page 320

The parallel

sides are not

the same length

The non-parallel

sides are the

same length

One pair of

opposite

angles is

equal

The adjacent

sides are the

same length

Square Rhombus

Rectangle

Trapezium

A trapezium has one pair of parallel

sides. It is also called a trapezoid.

Isosceles trapezium

This shape is like a normal trapezium,

except that the non-parallel sides are the

same length.

Kite

A kite has

two pairs of equal,

adjacent sides.

Adjacent means that

the sides are next to

each other.

The other pair

of opposite

angles is not

equal?

216_217_Quadrilaterals.indd 217 29/02/2016 18:57