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There are 7 triangles in a nonegon
7
Ten
6? 108 35
In general you would need to select a vertex of the nonagon and join it to the other vertices (except the two adjacent ones). This will divide the nonangon into 7 triangles. Measure the sides and/or angles of these triangles and calculate their areas. Add these together to get the area of the nonagon.If the nonagon is regular then there are formulae to calculate its area. These depend on whether you know the side length, apothem or circumradius.
The smallest number of triangles that you could divide a nonagon into is seven.
There are 7 triangles in a nonegon
7
9-2 = 7 triangles
A nine sided shape has 7 triangles
7
It can form 7 triangles
7
7
A 9 sided nonagon is comprised of 7 triangles
if you need to know how many triangles are in a polygon ... just take the number of its sides and subtract for example. nonagon has 9 sides so it will be 9-2=7 so, a nonagon has 7 triangles
6 Triangles!!