How does a quadrilateral is named .Name its parts

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Solution

It is named by using 4 capital letters as the vertices (in sequential order clockwise or anticlockwise)
Quadrilateral ABCD has :
1. 4 vertices - A . B . C . D
2. 4 sides - $¯ ¯¯¯¯¯¯ ¯ A B$ , $¯ ¯¯¯¯¯¯ ¯ B C$ , $¯ ¯¯¯¯¯¯¯ ¯ C D$ , $¯ ¯¯¯¯¯¯¯ ¯ D A$ .
3. 4 angles - $∠ A$ , $∠ B$ , $∠ C$ , $∠ D$ .

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