Question

O is the centre of circle and chord AB is equal to the radius of the circle.by which euclid's axiom,it can be proved that triangle OAB is an equilateral triangle?​

Answer 1

Answer:

In triangle OAB

OA=OB [radius]

AB=OB [given]

So, by Axiom 1:

Things which are equal to the same things are equal to one another.

This makes the triangle an equilateral.

Hope it helped you!!!!!