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It is easier to understand if you draw on graph paper. Each little square represents one unit of area. So if you have a square with 4 little squares in it, then the length is 2 and the width is 2. Multiplied together it makes 4. A similar idea happens when you don't have a shape on graph paper. Instead, you use the info you are told, even if you are given a picture that doesn't look that size.

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14y ago

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