Question

Given AB and CD are two equal chords of a circle with centre O
i) State the congruency rule by which ∆OAB and ∆OCD are congruent.
ii) If ∠AOB = 60° then State the measure of ∠COD?​

Answer 1

Answer:

i) SSS.

ii) 60°

Step-by-step explanation:

For i), AB =CD is given and AO = BO = CO = DO as radii of same circle are equal.

For ii) according to corresponding angles of congruent triangles are equal, angle AOB =angle COD = 60°