The length of the rectangle is 4cm more than its width if the area of the rectangle is 45cm, what is its width?
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The length of the rectangle is 4cm more than its width if the area of the rectangle is 45cm, what is its width?
Assign a variable to the rectangle's sides.
If the length of the rectangle is l, then the width would be l-4, right?
The area is 45 cm^2, and the area is obtained through the product of the length and the width, this gives:
Can you solve this to get the length of the rectangle? Then, you have enough information to guess the width :)
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