The perimeter of a rhombus is equal to the sum of the lengths of all its sides, or the length of the side times 4

**Rhombus** is a parallelogram in which all sides are equal.

The perimeter formula of the rhombus is ABCD, with sides: AB = CD = BC = AD = a

LARGE P_

Where:

P - rhombus perimeter

a - side of the rhombus

**Rhombus properties**

- Diagonals of a rhombus are perpendicular
- Diagonals of a rhombus are the bisectors of its angles.

**Signs of a rhombus**

- A parallelogram whose diagonals intersect at right angles is a rhombus,
- A parallelogram whose diagonals are the bisectors of its angles is a rhombus.

To find the perimeter of a given rhombus, we use the formula

Substituting the value a = 10 cm, we obtain:

P_

The perimeter of the rhombus is (P_

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