Answer:
C. 56°
Step-by-step explanation:
The measures of a triangle all add up to 180. Since this is a right triangle, we already know one of the measures is 90 degrees. Another measure is given to us, and we need to find measure Q. So far:
mQ = ?
mR = 34°
mS = 90°
To find the remaining angle, just subtract what you already have from the total
180 - (90 + 34) = ?
180 - 124 = 56
