What is mS?
A. 56
B. 68
C. 112
D. 124

Answer:
[B] 68
Step-by-step explanation:
Given:
the figure in the picture
Solution:
Q - 124 + 56 =180
Since, r is also 56 degrees that means S is 68 degrees because the sum of each angle has to add up to 180 degrees.
Step by step solving below:
Q = 180 - 124
Q = 56
56 (m∠Q) + 56 (m∠ R) = 112
S = 180 - 112
S = 68
Thus, the answer is [B] 68 which also means m∠ 68
Kavinsky
Answer:
mS = 68 (B)
Step-by-step explanation:
First, we are given mR, which is 56.
Next, we can figure out mQ by subtracting 124 from 180 (because it's a straight line) :: 180 - 124 = 56, SO, mQ = 56
Now, we know that the sum of all the interior angles is 180, so we'll subtract mR and mQ from that....
180 - (mR + mQ) >> 180 - (56 + 56) >> 180 - 112 = 68
therefore, mS = 68