Question

b. find the length when the width is 4 meters and the perimeter is 36 meters. m need help?

Explanation:

Step1: Recall the perimeter formula for a rectangle

The perimeter formula for a rectangle is \(P = 2(l + w)\), where \(P\) is the perimeter, \(l\) is the length, and \(w\) is the width.

Step2: Substitute the given values into the formula

We know that \(P = 36\) meters and \(w = 4\) meters. Substituting these into the formula \(36=2(l + 4)\).

Step3: Solve the equation for \(l\)

First, divide both sides of the equation by \(2\): \(\frac{36}{2}=l + 4\), which simplifies to \(18=l + 4\). Then subtract \(4\) from both sides: \(l=18 - 4\).

Answer:

\(14\)