1.

If only one pair of opposite sides of a quadrilateral is parallel then it is called ​

Answer»

Step-by-step explanation:

(1)A quadrilateral with one pair of opposite sides parallel is called a trapezium. (2) The DIAGONALS of a rhombus bisect each and other at 90o. (3) two TRIANGLES are said to be congruent if their CORRESPONDING sides and angles are EQUAL.



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