What is a quadrilteral that

  1. in elliptic geometry prove that the length of the summit of a saccheri quadrilteral is less than the base
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    2. al asked by al
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  2. What is the area of a quadrilteral that is 1 and 1/2 feet tall and 3 and 1/4 feet wide?
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  3. What is a quadrilteral that has rotational symmetry but no line of symmetry?
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    2. Rmz asked by Rmz
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