Question

look at this square. find the value of u.
blue square with side labeled u
perimeter = 324 miles
u = \boxed{} miles

Explanation:

Step1: Recall the perimeter formula for a square

A square has 4 equal sides, so the perimeter \( P \) of a square is given by the formula \( P = 4 \times \text{side length} \). Here, the side length is \( u \), and the perimeter \( P = 324 \) miles. So we have the equation \( 324 = 4u \).

Step2: Solve for \( u \)

To find \( u \), we divide both sides of the equation by 4. So \( u=\frac{324}{4} \). Calculating the division, \( 324\div4 = 81 \).

Answer:

81