9 diagonals
An octagon has 16 diagonals.
0.5*(82-24) = 20 diagonals
Four sided quadrilaterals have two diagonals.
8
9 diagonals
9 diagonals
In a 2d diamond there are 2 diagonals.
how many triangles are formed when any parallelogram and it diagonals are drawn
An octagon has 16 diagonals.
38 diagonals
0.5*(82-24) = 20 diagonals
Four sided quadrilaterals have two diagonals.
5693
8
A diamond shape has four sides, so it is essentially a quadrilateral. The formula for calculating the number of diagonals in a quadrilateral is (n)(n-3)/2, where n is the number of sides. In this case, n = 4, so the calculation would be (4)(4-3)/2 = 2 diagonals. Therefore, a diamond shape could have 2 diagonals drawn within it.
If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed