# If ABCD be a rhombus, AC is its smallest diagonal and ∠ABC=60o, find length of a side of the rhombus when AC=6 cm.

- 6√2 cm
- 3√3 cm
- 6 cm
- 3 cm

**Answer : (3) 6 cm**

**Explanation:-Rhombus all sides are equal and opposite sides are parallel and opposite angles are equal.**

AC cuts the rhombus in two equilateral triangle

therefore, each side is 6 cm.

Hence ,the answer is (3) 6 cm.