1) Parallelogram is a ............. quadrilateral ? a) concave b) convex c) regular d) open
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1) Parallelogram is a ............. quadrilateral ? a) concave b) convex c) regular d) open
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Answer:
regular
Step-by-step explanation:
By comparison, a quadrilateral with just one pair of parallel sides is a trapezoid in American English or a trapezium in British English. The three-dimensional counterpart of a parallelogram is a parallelepiped