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If A is the center of the circle shown above and AB=BC=CD, [#permalink]
25 Sep 2003, 04:40

10. If A is the center of the circle shown above and AB=BC=CD, what is the value of x?
(A) 15
(B) 30
(C) 45
(D) 60
(E) 75
ps: I am not able to copy the geometry drawing, so i am sending it as a file. btw, how is possible to copy figures/drawing in the mail itself.

Correct.
stolyar how did u arrived at the answer. I used properties of angles in circle. (angle subteded by an arc at center is twice the angle that it substends at any other point on the circle).
Just seeing if there is a shorter way.