Thread: Circle Geometry

Hi



DA produced and CB produced meet at Q. If angle CDB = angle DQC = x, prove that CD = ca. (Hint: Let angle CBD = y)

Can anyone please give me a hint on how to do this question?

Originally Posted by xwrathbringerx

Hi



DA produced and CB produced meet at Q. If angle CDB = angle DQC = x, prove that CD = ca. (Hint: Let angle CBD = y)

Can anyone please give me a hint on how to do this question?

I don't usually do geometry but since my first post was a circle geometry one and since it's the anniversary of my first post I will do this one.

There's a theorem that tells you that . Therefore .

From it follows that . Then .

So is isosceles etc.