Definition of Quadrangle

A quadrangle is a polygon with four sides and four angles.

More About Quadrangle

  • Quad means 4
  • All the quadrilaterals (such as parallelogram, rectangle, square, trapezoid, etc.) are quadrangles.
  • A quadrangle can be either convex or concave.

Video Examples: Quadrangles

Examples of Quadrangle

    The above figures are the examples of convex quadrangles.

Solved Example on Quadrangle

Ques: Which of the figures is a concave quadrangle?

    A. Figure 1
    B. Figure 2
    C. Figure 3
    D. Figure 4
    Correct Answer: C


    Step 1: A concave quadrangle is a four-sided polygon in which a rubber band does not fit and leaves some gap.
    Step 2: Figure 3 is a concave quadrangle as it has four sides and a rubber band could not fit around it.
    Step 3: So, Figure 3 is a concave quadrangle.

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