Home  >  Class 9 Math  >  Class 9 Maths Practice Test: Lines and Angles - Pair of Angles

If a ray stands on a line, then the sum of two adjacent angle is 180°.

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When two lines share a common endpoint, called vertex then an angle is formed between these two lines is known as the pair of angles.


If a ray stands on a line, then the sum of two adjacent angle is 180°.






 
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