Page 20 - Mathematics Teaching Material Two Dimensional Figure

Mathematics Teaching Material Two Dimensional Figure

8. Trapezoid

What is a trapezoid ?

Trapezoid is a build the right quadrilateral has pair of parallel

opposite sides.

Take a look at the picture on the side.

The wake beside is a trapezoid A B C D. Trapezoid

ABCD has parallel sides AD and BC and can be
written AD//BC. AB, BC, CD and DA are the sides

of the trapezoid. The longest side of the trapezoid is

called the base (AB).

From the picture above we can conclude the properties of a trapezoid :

1. Has 4 sides

2. The sides are not the same length

3. The diagonals do not bisect the same length

4. Has 1 rotational symmetry

Area of a trapezoid = × ( ) ×

Around = AB + BC + CD + DA

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