Question

1. x = __________

Explanation:

Step1: Identify equal - sides property

In a rectangle, opposite sides are equal. Here, \(AB = CD\). So, \(3x=12\).

Step2: Solve for \(x\)

Divide both sides of the equation \(3x = 12\) by 3. We get \(x=\frac{12}{3}\).

Answer:

4