Answer:
The measure of angle QRS is 106°.
Explanation:
Finding the supplement of angle MNO:
When two angles are supplementary, they form a straight angle, which measures 180°.
Since we know that the measure of angle MNO is 74°, we can find the measure of angle QRS by subtracting 74 from 180
m∠MNO + m∠QRS = 180°
(74 + m∠QRS = 180) - 74
m∠QRS = 106
Thus, the measure of angle QRS is 106°.