Calculate the areas of all the possible quadrilaterals that can be constructed by joining together dots on this grid:
Teacher: Click on the dots above to show joining lines. Assume that the vertical and horizontal distances between adjacent dots is one unit.
A printable sheet for student use is available here.
A Flash version of the grid is here.
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Topics: Starter  Area  Geometry  Investigations  Mensuration  Shape
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1 square unit 
1.5 square units 
2 square units 
2.5 square units 
3 square units 
4 square units 
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