Choose the correct statement :

Question

Accepted Answer

Option 3 is the correct statement: "A rhombus has four equal sides."

1. **Explanation for Option 3:**
   - A rhombus is a type of quadrilateral where all four sides are of equal length. This is a defining property of a rhombus. Additionally, the opposite angles of a rhombus are equal, and its diagonals bisect each other at right angles. These properties make Option 3 the correct statement.

2. **Explanation for why other options are incorrect:**

- **Option 1:** "A square has four equal sides and its diagonals are unequal."
     - This statement is incorrect because, while a square does have four equal sides, its diagonals are actually equal in length. In a square, the diagonals are also perpendicular to each other and bisect each other.

- **Option 2:** "Opposite sides of a rectangle are equal and its diagonals are unequal."
     - This statement is incorrect because, although a rectangle does have opposite sides that are equal, its diagonals are also equal in length. The diagonals of a rectangle bisect each other but are not unequal.

- **Option 4:** "Opposite sides of a quadrilateral are always equal."
     - This statement is incorrect because it is not true for all quadrilaterals. While some specific types of quadrilaterals, like rectangles and parallelograms, have equal opposite sides, this is not a general property of all quadrilaterals. A general quadrilateral does not necessarily have equal opposite sides.

In conclusion, Option 3 is the correct statement because it accurately describes a fundamental property of a rhombus, distinguishing it from other quadrilaterals.