9514 1404 393
Answer:
s = 2°
Step-by-step explanation:
The triangle sum theorem tells you the sum of angles in a triangle is 180°. This fact can be used to write an equation that can be solved for s.
s +38° +34s +72° = 180°
35s = 70° . . . . . . . . . . . . . subtract 110°
s = 2° . . . . . . . . . . . . . divide by 35
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Check
The triangle angle measures are (s+38°) = 40°, 34s = 68°, and 72°. These total 180°, as they should.
