Question

what is the measure of the missing angle?

Explanation:

Step1: Recall the sum of angles in a triangle

The sum of the interior angles of a triangle is \(180^{\circ}\).

Step2: Set up the equation

Let the missing angle be \(x\). We know one angle is \(90^{\circ}\) (right - angle) and another is \(40^{\circ}\). So, \(x + 90^{\circ}+40^{\circ}=180^{\circ}\).

Step3: Solve for \(x\)

$$
LATEXBLOCK0
$$

Answer:

\(50^{\circ}\)