680 58 X What is the measurement of the missing angle? a 54° b. 68° C. 122° d. 126°?

To find the measurement of the missing angle, we need to use the fact that the sum of the angles in a triangle is always 180°.

Given that two angles are 68° and 54°, we can add them together and subtract the sum from 180° to find the missing angle:

68° + 54° = 122°

180° - 122° = 58°

Therefore, the missing angle is 58°.

So the correct answer is:

b. 58°

d. 126°