- A340
- B170
- C155
- D185
Step-by-Step Solution
Yes. Exterior = sum of interior opposite angles = 175. Other = 175 - 5 = 170°. (Valid: third interior = 180 - 175 = 5°; angles 170, 5, 5 sum to 180.)
Answer: B) 170
Reasoning: In any triangle, can an exterior angle be 175° while one interior opposite angle is 5°? If yes, what must the other interior opposite angle be?
Class 7Exterior Angle PropertyTriangles
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