In which of the following quadrilaterals do diagonals NOT intersect at 90\(^\circ \) ?

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RRB Group D 13 Sept 2022 Shift 1 Official Paper
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  1. Rhombus
  2. Kite
  3. Parallelogram
  4. Square

Answer (Detailed Solution Below)

Option 3 : Parallelogram
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Concept used

Rombus: The diagonal of a rhombus is a line segment that joins any two non-adjacent vertices of a rhombus.

 A rhombus has two diagonals that bisect each other at right angles, thus, they form 4 right-angled congruent triangles.

Kite: The two diagonals of a kite bisect each other at 90 degrees. The main diagonal of a kite bisects the other diagonal. 

Square: A diagonal divides a square into two isosceles right-angled triangles.

Calculation

The diagonals of Parallelogram do not intersect at 90\(^\circ \)

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