Question

How many measurements are sufficient to make a quadrilateral?

• A. 4
• B. 5
• C. 6
• D. 7

Answer 1

The correct option is B 5

Any four measurements are not sufficient to draw a unique quadrilateral.
Let us take AB = 5 cm, BC = 6 cm, AD = 7 cm, CD = 8 cm. We shall start constructing with any one side (say AB).
Construct AB with length 5 cm. Now as we have BC and AD we can draw arcs with BC and AD as radii.
But we cannot mark the points C and D based on the data given. So, we need more data to draw a quadrilateral.
So we need a minimum of 5 measurements to construct a quadrilateral.