Quadrilaterals are four-sided shapes that have straight sides and exist in two dimensions. The document discusses properties of geometry related to parallel lines cut by a transversal and theorems about triangles. It also lists different types of quadrilaterals such as parallelograms, rectangles, squares, trapezoids, and kites.

2. Quadrilaterals
• Quadrilateral just means "four sides"
(quad means four, lateral means side).
• Any four-sided shape is a
Quadrilateral.
• But the sides have to be straight, and it
has to be 2-dimensional.

4. Some Properties in
Geometry
A. if two || lines are cut by a transversal, then the
following angle pairs are congruent.
• Corresponding angles
• Alternate interior angles
• Alternate exterior angles

5. Theorems
• HyL(Hypotenuse-Leg)Theorem
• LL(Leg-Leg)
• HyA(Hypotenuse-Angle)
• LA(Leg-Angle)

6. Different Types of
Quadrilateral
• Parallelogram
• Rhombus
• Rectangle
• Square
• Trapezoid
• Isosceles Trapezoid
• Kite
• Trapezium

7. THANK YOU