MathDB

ASU 569 Commonwealth of Independent States 1991 right angle, inters.circles

Source:

August 15, 2019

perpendiculargeometrycircles

Problem Statement

Circles

C

and

C'

intersect at

O

and

X

. A circle center

O

meets

C

at

Q

and

R

and meets

C'

at

P

and

S

.

PR

and

QS

meet at

Y

distinct from

X

. Show that

\angle YXO = 90^o

.

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