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Earn +20 ptsQ: How many parallel lines does a concave have?
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Can a heptagon be parallel and concave?
No, a heptagon cannot be parallel but two heptagons can.A heptagon can be concave.
How many lines of parallel lines does a square have?
A square has 2 pairs of opposite parallel lines.
How many pairs of parallel line does a triangle have?
There cannot be parallel lines in any [plane] triangles.
How many parallel lines does a triangular prism have?
A triangular prism has 9 parallel lines
How many sets of parallel lines are in a square?
there are 2 sets of parallel lines in a square
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