A rectangular pig pen has a perimeter of 39.8m and an area of 54.7m^2. Find its dimensions. (^2 means squared 2) Thanks for your helps

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Originally Posted by 0110kim A rectangular pig pen has a perimeter of 39.8m and an area of 54.7m^2. Find its dimensions. (^2 means squared 2) Thanks for your helps Since it is a rectangle, you know $\displaystyle P = 2l + 2w$ and $\displaystyle A = lw$. So $\displaystyle 39.8 = 2l + 2w$ $\displaystyle 54.7 = lw$. Solve the equations simultaneously.