Difference between revisions of "Area of a quadrilateral"
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=== Prerequisites/Instructions, prior preparations, if any === | === Prerequisites/Instructions, prior preparations, if any === | ||
| + | Prior understanding of properties of triangles | ||
===Materials/ Resources needed=== | ===Materials/ Resources needed=== | ||
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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 | ||
| + | '''Worksheet''' | ||
| + | : {| class="wikitable" | ||
| + | |Value of diagonal AC (f) | ||
| + | |Value of h | ||
| + | |Value of j | ||
| + | |Area of triangle ABC | ||
| + | |Area of triangle ADC | ||
| + | |Area of Quadrilateral | ||
| + | |- | ||
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Revision as of 09:05, 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
Worksheet
Value of diagonal AC (f) Value of h Value of j Area of triangle ABC Area of triangle ADC Area of Quadrilateral