document.write( "Question 180207: 2. Can a parallelogram have four right angles? Justify your answer \n" ); document.write( "
Algebra.Com's Answer #135080 by Mathtut(3670)\"\" \"About 
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yes, if all the angles of a parallelogram are 90 degrees it is either a rectangle, rhombus , or square. parallelogram states that--->opposite sides are parallel, opposite sides are congruent, consecutive angles are supplementary. tranversals can also be used to show certain properties. \n" ); document.write( "
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