Shape
Copyright David & Cynthia Thomas, 2009
Area of Triangles--Directed Activity: Area Formulas
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Focus |
Areas of triangles |
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Technologies |
Paper & pencil |
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Background |
Using the grid lines in Figure 2.3, both triangles may be seen as having altitudes of 2 units. There respective bases are 5 and 4 units.
Figure 2.3: Area Formula
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Tasks |
Determine the area of each triangle in Figure 2.3 using the algebraic formula A = ½bh. |
