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Topic: Question about trapezoids
Replies: 7   Last Post: Jul 8, 2008 5:13 AM

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Walter Whiteley

Posts: 418
Registered: 12/3/04
Re: Question about trapezoids
Posted: Dec 13, 2006 5:23 PM
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The problem seems to come down to special cases of SSA.

When you speak about 'diagonals' there is am implication that these
are longer than the missing third side, and that the 'diagonals'
cross while the missing third sides do not cross.

If this is true, then you are in a subcase where SSA gives the
necessary congruence.

Walter Whiteley

On 13-Dec-06, at 1:33 PM, Jason Fahy wrote:

Poor phrasing up there, let me try again:

Is it true that IF a quadrilateral has two equal base angles and
diagonals of equal length, it must be an isosceles trapezoid? If so,
etc, etc...

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