At point , ray stands on a straight line . This produces two adjacent angles and…
MATHEMATICS · Multi-part · CBSE · Mathematics · Lines and Angles · Lines and Angles
Problem
At point O, ray OC stands on a straight line AB. This produces two adjacent angles ∠COB and ∠COA.
(i) State the relationship between the measures of ∠COB and ∠COA.
(ii) Using the statement in part (i), explain why each of the two angles is called the supplement of the other.
(iii) Do ∠COB and ∠COA together constitute a linear pair? Give a reason for your answer.