Missing Side Lengths

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9 Terms

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Main concept

Use the area formula A = b × h If you know the area and one side you can find the missing side

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Example

Area = 77 in2 Height = 7 in

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Step 1

77 = b × 7

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Step 2

Divide both sides by 7 → b = 11

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Step 3

Check 77 = 11 × 7 works

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Quick tips

If a number multiplies the variable undo it with division Always check by plugging the answer back in

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Memory trick

Area is the whole space If one side is missing divide the area by the side you know

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TITLE

Missing Side Lengths 9 26 25

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