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Perimeter . . . add up the lengths of all three sides.

Area . . . multiply (half the length of the base) by (the height).

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Q: How do you find perimeter and area of triangles?
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If two triangles have the same perimeter will they have the same area?

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What is the fraction of 3 triangles?

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How do you find the area or perimeter of composite figures?

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