MathDB

KL is parallel to O1O2

Source:

November 2, 2010

trigonometrygeometryangle bisectortrig identitiesLaw of Sinesgeometry proposed

Problem Statement

Two circles

S_1

and

S_2

with centers

O_1

and

O_2

respectively intersect at

A

and

B

. The tangents at

A

S_1

and

S_2

meet segments

BO_2

and

BO_1

K

and

L

respectively. Show that

KL \parallel O_1O_2.