Question

what is the value of u?

Explanation:

Step1: Analyze the relationship between angles

We know that \( u + 28^{\circ}=71^{\circ}\) (because the sum of \(u\) and \(28^{\circ}\) gives the \(71^{\circ}\) angle).

Step2: Solve for \(u\)

Subtract \(28^{\circ}\) from both sides of the equation: \(u = 71^{\circ}-28^{\circ}\).

$$u=43^{\circ}$$

Answer:

\(43\)