Question

How many triangles can you form if you draw all the diagonals from one vertex of a pentagon? a. 2 triangles c. 4 triangles b. 3 triangles d. 5 triangles

Answer 1

Hi,

It has 2 from each vertex. <==ANSWER

There are 5 vertices on a pentagon. You can't draw a diagonal to the starting point or 2 either adjacent vertex. So the number of diagonal you can draw from a vertex of an n-sided polygon is n - 3. In the case of a 5 sided pentagon, that means there are 5 - 3 or 2 diagonals from each corner.

If you draw them from each corner of the pentagon, it forms a 5 pointed star.

I hope that helps!! :-)

Answer 2

Thank you!

Answer 3

your welcome