Which is true regarding the sides of a rhombus?

In a rhombus, all sides are indeed of equal length. This characteristic is a defining property of a rhombus, which means that regardless of the angles or the shape's orientation, each of the four sides will measure the same length. This property is what differentiates a rhombus from other quadrilaterals, such as rectangles or general parallelograms, where only opposite sides are equal in length.

To further understand this, consider the geometric definition of a rhombus: it is a type of parallelogram where all four sides are congruent. This uniformity in side length contributes to various other properties of rhombuses, such as their diagonals bisecting each other at right angles and the fact that the opposite angles are equal.

This clarification highlights why the chosen answer aligns with the intrinsic properties of a rhombus, reinforcing the necessity to understand the defining attributes of various geometric shapes in geometry.