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How Many Diagonal Does of the Following Have a Triangle . - Mathematics

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Question

How many diagonal does of the following have A triangle .

Short Note

Solution

An n-sided convex polygon has  \[\frac{n(n - 3)}{2}\]  diagonals. 

 A triangle does not have any diagonal in it.

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Chapter 15: Understanding Shapes-I (Polygons) - Exercise 15.1 [Page 6]

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RD Sharma Mathematics [English] Class 8
Chapter 15 Understanding Shapes-I (Polygons)
Exercise 15.1 | Q 6.3 | Page 6
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