Question

please do this question​

Answer 1

Answer:

as we know in equilateral triangle all sides are equal so , in triangle OAB , AB = OA = OB .

SO  after joining the other isosceles triangle OCD we have , OC = OD  as o is the common point and it meets on a same straight line that is CD. SO we can say that OCD is an isosceles triangle.

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