Question

we find number of elements in a triangle​

Answer 1

Answer:

Method to Find elements in Triangle:

If we connect all vertices of a regular N-sided polygon we obtain a figure with = N (N - 1) / 2 lines. For N=8, the figure is: Careful counting shows that there are 632 triangles in this eight sided figure. All triangles are formed by the intersection of three diagonals at three different points.

Answer 2

Answer:

3 sides

3angles

3vertices

Forms a triangle and sum of the angle of a triangle is 180°