- A130°
- B70°
- C50°
- D60°
Step-by-Step Solution
°) = 130°, so °. Interior ∠° − 130° = 50° (linear pair) — check: 60° + 70° + 50° = 180°.
Answer: C) 50°
In △ABC, ∠, ∠° and the exterior angle at C (BC produced) is 130°. Find the interior angle ∠C.
Class 9Exterior Angle of a TriangleGeometry — Lines and Angles
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