**QUADRILATERALS**

**CONTENT**

- What is a Quadrilateral?
- Examples of Quadrilaterals
- Construction of a Square
- Construction of a Rectangle
- Construction of a Parallelogram
- Construction of a Rhombus
- Construction of a Trapezium

**What is a Quadrilateral?**

A quadrilateral is a plane figure bounded by four straight sides and whose four angles add up to 360^{0}. The line joining two opposite corners of quadrilateral is known as diagonal.

**Examples of Quadrilaterals**

- Squares
- Rectangle
- Parallelogram
- Rhombus
- Trapezium
- Kite etc.

**Construction of A Square**

E.g.: How to construct a square given that one of its sides is 60mm

**Procedure:**

- Draw the given side AB to be 60 mm.
- With centre A and a convenient radius, draw a semicircle at A. use the semicircle to draw a vertical line at AE
- With center A and a radius AB, draw an arc to cut the vertical line at D, with center B and with the same radius, draw an arc at C.

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