A rhombus ABCD is to be constructed with side AB = 5 cm. Which of the following dimensions must also be specified to construct the rhombus?
AC
Minimum number of measures required to construct a rhombus are 2.
If one side of a rhombus is specified, another measurement that must be specified to construct a rhombus is its diagonal or one of the angles.
Thus, the correct answer is AC as it is diagonal.