# Thread: Please help me with this

1. ## Please help me with this

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

2. 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

$P = 2l + 2w$ and $A = lw$.

So

$39.8 = 2l + 2w$

$54.7 = lw$.

Solve the equations simultaneously.