CBSE Class 11-science Answered
the number of triangle formed by joining the vertices of a hexagon
Asked by lavanya.toshit | 21 Feb, 2023, 21:16: PM
Number of vertices of a hexagon = 6
Now, a triangle can be formed by joining three vertices.
Therefore, number of triangles formed ![equals C presuperscript 6 subscript 3 equals fraction numerator 6 factorial over denominator 3 factorial 3 factorial end fraction equals fraction numerator 6 cross times 5 cross times 4 cross times 3 factorial over denominator 3 factorial 3 cross times 2 end fraction equals 5 cross times 4 equals 20](https://images.topperlearning.com/topper/tinymce/cache/f7aa01d9cdb1ca919b1d3187e40045f0.png)
![equals C presuperscript 6 subscript 3 equals fraction numerator 6 factorial over denominator 3 factorial 3 factorial end fraction equals fraction numerator 6 cross times 5 cross times 4 cross times 3 factorial over denominator 3 factorial 3 cross times 2 end fraction equals 5 cross times 4 equals 20](https://images.topperlearning.com/topper/tinymce/cache/f7aa01d9cdb1ca919b1d3187e40045f0.png)
Answered by Rashmi Khot | 21 Feb, 2023, 21:26: PM
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