Question

6. The area of a rectangle is (5f + 21b – 3b) sq. unit. If its length is (51 – 3b) units, find its breadth.
Also, find the perimeter of the rectangle.
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Answer 1

Answer:

To find the width, multiply the length that you have been given by 2, and subtract the result from the perimeter. You now have the total length for the remaining 2 sides. This number divided by 2 is the width.