Question

The perimeter of a rectangular painting is 372 centimeters if the width of the painting is 88 centimeters what is its length?

Answer 1

The rectangle has opposite sides of equal lengths. So, a rectangle with width "w" and length "l has a paerimeter of:

$p=w+w+l+l=2w+2l$

In this case, p = 372 cm and w = 88 cm, so we input these ans solve for l:

$\begin{gathered} 372=2\cdot88+2l \\ 2l=372-176=196 \\ l=\frac{196}{2}=98 \end{gathered}$

So, the length of the painting is 98 cm.