question_answer

A quadrilateral is inscribed in a parabola, then which of the following is incorrect

A) Quadrilateral may be cylic. 

B) Diagonals of the quadrilateral may be equal.

C) All possible pairs of adjacent sides may be perpendicular.

D) none of these

Correct Answer: C

Solution :

As a circle can itersect a parabola in four points, so quadrilateral maybe cyclic. The diagonals of the quadrilateral may be equal as the quadrilateral may be an isosceles trapezium.

A rectangle cannot be inscribed in a parabola. So [c] is wrong.