Two circles intersect at A and B. The tangent to the 1st circle at A cuts the 2nd circle at C and the tangent to the 2nd circle at A cuts the 1st circle at D. Prove that triangles ABC and DBA are similar.
Two circles intersect at A and B. The tangent to the 1st circle at A cuts the 2nd circle at C and the tangent to the 2nd circle at A cuts the 1st circle at D. Prove that triangles ABC and DBA are similar.
Hi!
It is a simple application of Alternate Segment theorem.
read it here:Alternate Segment Theorem