Final answer:
To find the measure of the missing angle, set up an equation using the fact that the sum of angles in a triangle is 180. Solve the equation to find the missing angle.
Step-by-step explanation:
To find the measure of the missing angle, we can use the fact that the sum of the angles in a triangle is 180 degrees. Let's assume the missing angle is x. The given answer choices are A) 146°, B) 122°, C) 114°, and D) 100°. We can set up the following equation: x + 90° + 40° = 180°. Solving this equation, we find x = 50°. Therefore, the missing angle measures 50°, which is not one of the given answer choices.