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| =Additional Information= | | =Additional Information= |
| ==Useful websites== | | ==Useful websites== |
− | * Effective Introduction to Quadrilateral [http://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/ click here]<br>
| + | # http://www.shodor.org/ihnteractivate/discussions/Quadrilaterals/ click here : For effective introduction to quadrilaterals.<br> |
− | * Quadrilateral is also tetragon, quadrangle [http://www.mathopenref.com/quadrilateral.html click here]
| + | # http://www.mathopenref.com/quadrilateral.html : Simple explanation about quadrilaterals. |
− | * http://www.slideshare.net/muzzu1999/types-of-quadrilaterals-and-its-properties-group-4 : This website has a very good avtivity on properties of quadrilaterals.
| + | # http://www.slideshare.net/muzzu1999/types-of-quadrilaterals-and-its-properties-group-4 : This website has a very good activity on properties of quadrilaterals. |
− | * http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i1/bk8_1i3.htm This is a very good website for students to understand classification of quadrilaterals as per their properties. The activity is given in the form of a flow chart.
| + | # http://www.cimt.plymouth.ac.uk/projects/mepres/book8/bk8i1/bk8_1i3.htm This is a very good website for students to understand classification of quadrilaterals as per their properties. The activity is given in the form of a flow chart. |
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| ==Reference Books== | | ==Reference Books== |