Question

plz help


angle bac = 60⁰,abc is equilateral,O is the centre of bigger circle, Oprime is the centre of smaller circle
ob=oc=2cm ,find the radius of smaller circle(oprime n) if triangle abc is circumscribed in the bigger circle​

Answer 1

Answer:

Step-by-step explanation:

Given,

△ABC is an equilateral triangle.

∠BAE=60

ABEC is a cyclic quadrilateral.

We know,

∠BAC+∠BEC=180

=>∠BEC=180−60

                      =120

We know that the angles subtended by an arc on the  circumference on the same side are equal.

Therefore,

∠ABC=∠BDC

=>∠BDC=60

hope it help

its helpfull so mark brillinest