Homework Help: geometry

Posted by Kate on Sunday, March 6, 2011 at 5:52pm.

Quadrilateral QRST has two pairs of congruent sides, but it is not a parallelogram. What figure is it? What further condition would it have to satisfy to be a parallelogram?

A. The figure is a square. To be a parallelogram, it would have to have pairs of opposite congruent sides, not just congruent sides.
B. The figure is a rectangle. To be a parallelogram, it would have to have pairs of opposite congruent angles, not just congruent sides.
C. The figure is a kite. To be a parallelogram, it would have to have pairs of opposite congruent sides, not just congruent sides.
D. The figure is a square. To be a parallelogram, it would have to have pairs of opposite congruent angles, not just congruent sides.

geometry - PsyDAG, Monday, March 7, 2011 at 11:11am
How does A differ from D? Answer seems to be B, but the reasoning does not seem to fit. A square is a specific type of rectangle.

http://www.algebralab.org/lessons/lesson.aspx?file=Geometry_QuadrilateralsSpecialCharactieristics.xml
geometry - joe, Monday, March 7, 2011 at 5:10pm
a

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