Question

The parallelogram whose diagonals are equal in length and not perpendicular is

called
(a) square
(b) rectangle.
(d) straight.
(c) rhombus.
(d) trapezium

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Answer 1

Rectangle.

Explanation:

If the diagonals are equal then the parallelogram is a rectangle. They are also equal in length in a square, which can be regarded as a special type of rectangle - but in this case the diagonals are perpendicular. They are also perpendicular in a rhombus.