Question 175461
true!!
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A rhombus is actually just a special type of parallelogram. Recall that in a parallelogram each pair of opposite sides are equal in length.   With a rhombus, all four sides are the same length.It therefore has all the properties of a parallelogram.
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If the diagonals formed anything but 90 degree angles it would only be a parallelogram because we would not have equal sides