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 Cyclic Hexagon And Ratio (Posted on 2007-12-08)
The six sides of a cyclic hexagon PQRSTU are PQ, QR, RS, ST, TU and UP. It is known that PQ= RS= TU and the diagonals PS, QT and RU meet at the point V. The lines PS and RT intersect at the point W.

Determine the ratio RW/WT, given that PR = 3*RT.

```                         .  . .  .  . .  .
.                         .
.                               .
.                                     .
.                                         .
.                                             .
.Q                                              R .
.                                                   .
.                                                     .
.                                                       .
.                                                         .

.                                                           .
.                                                           .
.                                                    V     WS
P                                                           T
.                                                           .

.                                                         .
.                                                       .
.                                                     .
.                                                   .
.                                                 .
.                                             .
.                                         .U
.                                     .
.                               .
.                         .
.  . .  .  . .  .

```
Unfortunately the reader must visualise the lineal connections.

 No Solution Yet Submitted by K Sengupta Rating: 4.0000 (2 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
 3 times isosceles | Comment 5 of 6 |
There is a point "O", the centre of the circle on whose circumference the hexagonal points lie.

Given that  "PQ= RS= TU" we also might need to know that we have 3 isosceles triangles with apices at O.  How might that influence our thoughts?

Oh, and Charlie's graphic here suggests (note with due reservations) that P,V,W & S could be collinear.

Edited on December 10, 2007, 9:13 am
 Posted by brianjn on 2007-12-10 08:50:07

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