A quadrilateral is a four- sided polygon with four angles.
A Quadrilateral has:
The interior add upto 360 degrees.
The five most common types of quadrilaterals are:
Rectangle: A quadrilateral with four 90-degree angles. Also opposite sides are parallel and of equal length.
Parallelogram: A quadrilateral with opposite sides parallel. also opposite angles are equal.
Square: A quadrilateral with four equal sides and four 90 degree angles. Also opposite sides are parallel.
Rhombus: A parallelogram with four equal sides. Also opposite sides are parallel and opposite angles are equal.
Trapezoid: A quadrilateral that has exactly two sides parallel.
Kite: It has two pairs of sides. Each pair is made up of adjacent sides that are equal in length. The angles are equal where the pairs meet.