## Sketch

## Perimeter of a rhombus

**Formula**: a b c d = U (perimeter)

a = b = c = d

**Example calculation:** 10cm * 4 = 40cm

## Area of a rhombus

**Formula**: a * ha = A (area)

Example**calculation**: 5cm * 7cm = ^{35cm2}

The calculation of a rhombus, also known as a rhombus, often involves determining properties such as area and perimeter. A rhombus is a special type of parallelogram in which all four sides are of equal length.

1. **area calculation**: The area of a rhombus can be calculated by dividing the product of the lengths of the two diagonals in half. If the diagonals are d1 and d2, then the area A = 0.5 * d1 * d2.

2. **calculating the perimeter**: The perimeter of a rhombus is simply four times the length of one side. If the side length is s, then the perimeter P = 4s.

3. **calculation of diagonals**: The diagonals of a rhombus are perpendicular to each other and bisect each other. In addition, the four triangles formed by the diagonals are each right-angled triangles. Therefore, the Pythagorean rule can be applied to calculate the length of the diagonals if the lengths of the sides and one diagonal are given.

It is important to note that these calculations are based on the assumption that the necessary dimensions (such as the lengths of the sides and/or diagonals) are already known. If this is not the case, these dimensions must first be determined by other means.