# Rectangle

## Diagonal

$$d=\sqrt{{a}^{2}+{b}^{2}}$$

## Perimeter

$$P=2(a+b)$$

## Area

$$A=a\xb7b$$

Keywords: rectangle, diagonal, perimeter, area

$$d=\sqrt{{a}^{2}+{b}^{2}}$$

$$P=2(a+b)$$

$$A=a\xb7b$$

Keywords: rectangle, diagonal, perimeter, area