- 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 3600. The line joining two opposite corners of quadrilateral is known as diagonal.
Examples of Quadrilaterals
- Kite etc.
Construction of A Square
E.g.: How to construct a square given that one of its sides is 60mm
- 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.
- NEW: Download the entire term's content in MS Word document format (1-year plan only)
- The complete lesson note and evaluation questions for this topic
- The complete lessons for the subject and class (First Term, Second Term & Third Term)
- Media-rich, interactive and gamified content
- End-of-lesson objective questions with detailed explanations to force mastery of content
- Simulated termly preparatory examination questions
- Discussion boards on all lessons and subjects
- Guaranteed learning