Question

To construct a parallelogram, what is the minimum number of measurements one needs to be provided with?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is C

3

If we have the lengths of two adjacent sides, then since opposite sides are equal in a parallelogram, we have the lengths of the other sides too. Since opposite angles are equal, if one angle is known, we can figure out the remaining three as well. Thus, a minimum of three independent measurements are needed to construct a parallelogram.