At a point , three distinct rays and are drawn such that and . (i) Prove that rays…
MATHEMATICS · Subjective · CBSE · Mathematics · Lines and Angles · Lines and Angles
Problem
At a point O, three distinct rays OA,OB, and OC are drawn such that ∠AOB=110∘ and ∠BOC=70∘.
(i) Prove that rays OA and OC are collinear.
(ii) If OD is the ray opposite to OB, calculate the measure of ∠COD.