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### presentation1

1. 1. STUDENT OF LUCKNOW PUBLIC SCHOOL
2. 2. MATHEMATICS PROJECT
3. 3. Name:- Ayushh Mehrotra <ul><li>Class:- </li></ul><ul><li>“ X” (10) </li></ul><ul><li>Registration No:- </li></ul><ul><li>R/SE/10000/54340/00089 </li></ul>
5. 5. What is quadrilateral <ul><li>A  quadrilateral  is a  polygon  with four  sides  (or 'edges') and four  vertices  or  corners . Sometimes, the term  quadrangle  is used, by analogy with  triangle , and sometimes  tetragon  for consistency with  pentagon  (5-sided),  hexagon  (6-sided) and so on. The word  quadrilateral  is made of the words  quad  (meaning &quot;four&quot;) and  lateral  (meaning &quot;of sides&quot;). </li></ul><ul><li>Quadrilaterals are  simple  (not self-intersecting) or  complex  (self-intersecting), also called crossed. Simple quadrilaterals are either  convex  or  concave . </li></ul>
6. 6. Angle sum property of quadrilateral <ul><li>We know that angle of quadrilateral is equal to 360° </li></ul><ul><li>In  geometry , a  square  is a  regular   quadrilateral . This means that it has four equal sides and four equal  angles  (90- degree  angles, or  right angles ). A square with  vertices  ABCD would be denoted  ABCD. </li></ul>
8. 9. Types of quadrilateral <ul><li>:- parallelogram </li></ul><ul><li>:- rectangle </li></ul><ul><li>:- square </li></ul><ul><li>:- rhombus </li></ul><ul><li>:- kite </li></ul><ul><li>:- triangle </li></ul><ul><li>:- trapezium </li></ul>
9. 10. Specific Quadrilaterals <ul><li>There are several specific types of quadrilaterals. They are classified based on their sides or angles . </li></ul>