Question

sum of the areas of regions A,B and C is 140cm² then x is

Answer 1

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Answer 2

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Area of rectangle= lb
=> 140 = (10+12+ x)×5
$= > \: \: \: \: \: \: \: \: \: \: \frac{140}{5} = 22 + x \\ = > \: \: \: \: \: \: \: \: \: \: 28 = 22 + x \\ = > \: \: \: \: \: \: \: \: \: \: x = 28 - 22 \\ = > \: \: \: \: \: \: \: \: \: \:x = 6$


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