
[mathlearn] Re: Question about unknown angle in a Parallelogram.
Posted:
Oct 10, 2011 11:44 PM



Okay... then how would I solve for the unknown?
Jon
 In mathlearn@yahoogroups.com, Ze'ev Wurman <zeev@...> wrote: > > Exterior angle theorem does not apply to quadrangles ... > > On 10/10/2011 7:42 PM, jjaywilson2004 wrote: > > > > Okay... This has me stumped! > > > > I have a Parallelogram constructed from 4 intersecting lines, with the > > following internal angles: X, X and (180  X) > > > > The angle opposite (180  X) is not given. > > > > Since I can employ Corresponding, Alternate Interior and Exterior > > angles to this figure, is it safe to assume I could employ the > > "Exterior Angle Theorem" to produce: > > > > (180  X) = 2X > > > > Thus... giving me X = 60 degrees? > > > > Thoughts? > > > > Jon > > > > > > [Nontext portions of this message have been removed] >

