SOLUTION: Are all squares parallelograms? Every quadrilateral is a parellelogram? If a quadrilateral is a square, then it is a rhombus?

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Question 191405: Are all squares parallelograms?
Every quadrilateral is a parellelogram?
If a quadrilateral is a square, then it is a rhombus?
Answer by jim_thompson5910(35256) About Me  (Show Source):
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Are all squares parallelograms? Yes. All squares have equal angle measures of 90 degrees which makes the opposite sides parallel.


Every quadrilateral is a parallelogram? No. A trapezoid is a quadrilateral but is NOT a parallelogram (there are two sides that are NOT parallel).


If a quadrilateral is a square, then it is a rhombus? Yes. All squares are rhombi (since all squares have equal side lengths).