Construction Of Square

Before talking about the construction of quadrilaterals or special quadrilaterals, let us recall what a quadrilateral is. A quadrilateral is a polygon which has 4 vertices and 4 sides enclosing 4 angles.The sum of its interior angles is 360 degrees. A quadrilateral, in general, has sides of different lengths and angles of different measures. However, squares, rectangles, etc. are special types of quadrilaterals with some of their sides and angles being equal. In this article, we will discuss the construction of a special case of quadrilateral, that is, construction of square.

Steps for Construction of Square

A square is a quadrilateral with sides of equal length and angles of the same measure. Let us say you are required to construct a square. The only dimension provided is the length of one of its side, 5 cm. We know that the 4 interior angles of the square measure 90 degrees each. Hence, we do not require any other dimension for the construction of square. All the sides are equal in measurement and are perpendicular.

The steps of construction are as follows:

  • Draw a line segment AB of 5 cm.

construction of square

  • Extend the line AB and using a compass, mark two arcs from B on the line. Mark the points as F and G.

construction of square

  • Mark arcs from point F and G above the line. The point where the arcs meet is named H.

construction of square

  • Join the point B and H.

construction of square

  • Set the compass to the radius of 5 cm and mark arc from points A and B. The point where the arc intersects BH is the vertex C of the square.

construction of square

  • With the same radius of 5 cm on the compass, mark an arc from the point C on the previously drawn arc above the point A. Mark their point of intersection as D.

construction of square

  • Join the points C and D as well as A and D to get the required square ABCD.
construction of square

Construction of Square

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Practise This Question

To construct a parallelogram a minimum of how many measurements need to be provided?