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It is a2 - 9b2.

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โˆ™ 2018-01-10 14:53:32
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Q: If the dimensions of a rectangle are a plus 3 b a plus 3b and a and minus 3 b a and minus3b what is the area of the rectangle in terms of a a and b b?
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What is the heighth of a rectangle?

The height of a rectangle is one of it's dimensions, the other is it's base.(There are other terms for these dimensions but as you can turn a rectangle any way you want and not change any of it's properties it really doesn't matter what you call the directions just don't mix them up during a calculation!)


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