Difference between revisions of "Area of a quadrilateral"
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* How can the area of the quadrilateral be found with the two triangles that are formed? | * How can the area of the quadrilateral be found with the two triangles that are formed? | ||
* Record the values of segments | * Record the values of segments | ||
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|Value of diagonal AC (f) | |Value of diagonal AC (f) | ||
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|Area of Quadrilateral | |Area of Quadrilateral | ||
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| − | + | :* Can the area of any quadrilateral be found with this method | |
Revision as of 09:06, 16 April 2019
Objectives
To find the area of a quadrilateral
Estimated Time
40 minutes
Prerequisites/Instructions, prior preparations, if any
Prior understanding of properties of triangles
Materials/ Resources needed
- Digital : Computer, geogebra application, projector.
- Non digital : Worksheet and pencil
- Geogebra files : ‘Area of a quadrilateral.ggb’
Download this geogebra file from this link.
Process (How to do the activity)
- How can the quadrilateral be divided into triangles?
- What is common for the two triangles formed?
- How can the area of the quadrilateral be found with the two triangles that are formed?
- Record the values of segments
Evaluation at the end of the activityValue of diagonal AC (f) Value of h Value of j Area of triangle ABC Area of triangle ADC Area of Quadrilateral . .
- Can the area of any quadrilateral be found with this method