- A180 - a
- Ba
- C90 - a
- D
Step-by-Step Solution
The acute and obtuse angles form a linear pair, so the obtuse angle is 180 - a degrees.
Answer: A) 180 - a
A transversal cuts two parallel lines. If one acute angle formed is a deg, the obtuse angle formed equals ______.
Class 9Parallel Lines and a TransversalGeometry — Lines and Angles
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