- A80
- B72
- C160
- D88
Step-by-Step Solution
Co-interior angles sum to 180. Ratio 4:5 means . Smaller = deg.
Answer: A) 80
A transversal cuts two parallel lines. An interior angle and its co-interior partner are in the ratio 4 : 5. Find the smaller angle (deg).
Class 9Parallel Lines and a TransversalGeometry — Lines and Angles
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