



Draw a duplicate triangle to form parallelogram.

Is this a polygon? Explain
Are these both polygons? Explain
Explain your reasoning.
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Decribe your strategy for finding the area of the parallelogram.
How do you decide the base of a parallelogram?
How do you decide the height of a parallelogram?
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Do parallelograms that have the same area have to look the same? Explain your answer.
Explain how you know which side of a parallelogram to use for a base.
Which can be decomposed into 2 identical triangles.
What is true about triangles and parallelograms with the same base and height?
Area formula for a triangle is:
A =
Choose a person and explain their strategy.
Highlight opposite vertex to side AB
Highlight opposite vertex to side BC
Highlight the base and height on each triangle.
Draw in the base for the designated height.
Choose all triangles with the same area.