Question

in the given circle ABCD is a parallelogram where o is the center of a circle find angle ABC​

Answer 1

Answer:

<ABC=120°

Step-by-step explanation:

In the ||gm, OA=OC(Radii)

So, all the sides are equal.

It's a rhombus.

Join OB.

Now ∆OBC is equilateral as OC=BC(Rhombus) and OB=OC(Radii).

Thus, <OCB=60°.

In an ||gm, adj. <s are supplementary.

So, <ABC=180-<OCB

<ABC=180-60

<ABC=120°