Rhombus Formulas

1. Area of Rhombus Formula

$\mathrm{Area}=\frac{\mathrm{d₁}\times \mathrm{d₂}}{2}$

Area is half the product of its diagonals (d₁ and d₂).

2. Perimeter of Rhombus Formula

$\mathrm{Perimeter}=4a$

Perimeter is four times the side length (a).

3. Diagonal of Rhombus Formula (using Side)

$\mathrm{d₁}=\sqrt{2\times a²}$

One diagonal (d₁) is calculated using side length (a).

4. Angle of Rhombus Formula

$\mathrm{cos\theta }=\frac{\mathrm{d₁}}{\mathrm{d₂}}$

The angle θ is calculated using the ratio of diagonals d₁ and d₂.

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