Question

what is the value of u?
u = square^{circ}

Explanation:

Step1: Apply the exterior angle theorem

The exterior angle theorem states that an exterior angle of a triangle is equal to the sum of the two non - adjacent interior angles. So, \(3u=(u + 11)+(3u-41)\).

Step2: Simplify the equation

$$
LATEXBLOCK0
$$

Step3: Solve for \(u\)

Subtract \(3u\) from both sides: \(0 = u-30\). Then add \(30\) to both sides: \(u = 30\).

Answer:

\(30\)