- A90°
- B180°
- C270°
- D360°
Step-by-Step Solution
By the Linear Pair Axiom, if a ray stands on a line the two adjacent angles formed are supplementary, so they sum to 180°.
Answer: B) 180°
The two angles of a linear pair add up to how many degrees?
Class 9Linear Pair and Vertically Opposite AnglesGeometry — Lines and Angles
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