- A220
- B100
- C110
- D120
Step-by-Step Solution
Exterior angle = sum of the other two interior angles = 50 + 60 = 110 deg (also 180 - 70 = 110).
Answer: C) 110
In a triangle, the three interior angles are 50°, 60° and 70°. The exterior angle at the 70° vertex is:
Class 7Exterior Angle PropertyTriangles
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