Various types of Quadrilateral are:
a) Parallogram
b) Rectangle
c) Square
d) Rhombus
e) Trapezium
f) Kite
A Quadrilateral in which opposite sides are parallel is called a parallelogram. In the figure, ABCD is a parallelogram. Here, AB || CD and AD || BC. Also, opposite sides of a parallelogram are equal.
Rectangle:
A parallelogram, each of whose angle is 90^{0}, is called a rectangle. In the figure, PQRS is a rectangle. We write it as rect. PQRS.
A Rectangle having all sides equal is called a square. In the figure, LMNO is a square.
A Quadrilateral in which two opposite sides are parallel and two opposite sides are non-parallel, is called a trapezium. In the figure, BCDE is a trapezium.
Point to Remember- If the two non-parallel sides of a trapezium are equal, then it is called an isosceles trapezium.
A Quadrilateral in which two pairs of adjacent sides are equal is known as kite. PQRS is a kite such that PQ = QR and PS = RS.
Points to Remember-
a) A square, rectangle and rhombus are all parallelograms.
b) A square is a Rectan...Read More