## Rectangle

Rectangle is a Quadrilaterl that has two long sides parallel and congruent to each other and two short sides parallel and conguent to each other and the four equal angles equal to 90o

AB // = DC
${\displaystyle \angle A=\angle B=\angle C=\angle D=90^{o}}$

## Properties

### Perimeter

P = AD + BC + AB + DC = 2x(a+b)

### Area

${\displaystyle A=ab}$