Mathematics for IGCSE & O level - Equations (Section 6 - No. 7)
Which techniques can be employed for finding the dimensions of a rectangular pen, when knowing the area and perimeter?
Setting up equations to represent the area and perimeter.
Using the quadratic formula to solve for dimensions.
Completing the square on a transformed area equation
Rearranging formulas for the variables, then solving
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All these methods can assist in finding the dimensions.