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Area of a Triangle-height unchanged

Author:
Allen Harroothunian, chudson
Area of a Triangle Investigation
Questions: 1. What is the formula used to find the area of a triangle? 2. What is the formula used to find the perimeter of a triangle? 3. Calculate the area of the triangle DEF. 4. Calculate the perimeter of triangle DEF. 5. If you drag vertex D, what measures remain the same and what measures are different?

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