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Because the lines between each vertice of the figure are already drawn.

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Q: Explain why triangles have no diagonals?
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Related questions

How many diagonals does an equilateral triangle have?

Triangles have 0 diagonals.


How many triangles are formed when any parallelogram and its diagonals are drawn?

how many triangles are formed when any parallelogram and it diagonals are drawn


Is it true triangles have no diagonals?

Yes.


Does the diagonals of a parallelogram bisect the angles?

No, the diagonals of a parallelogram do not necessarily bisect the angles. The diagonals of a parallelogram divide it into four congruent triangles, but they do not necessarily bisect the angles of those triangles.


Do diagonals of a triangle bisect each other?

No, for the simple reason that triangles do not have diagonals.


Can a quadrilaterals always be divided into two triangles?

Yes, it can always be divided in 2 triangles. This is because every quadrilateral has 2 diagonals. It is these diagonals that divide the quadrilateral into 2 triangles.


How many triangles are formed by the diagonals from six vertices of a hexagon?

The three major diagonals in an ordinary hexagon do not intersect at the same point. Therefore, in such a hexagon, the diagonals form 111 triangles.


Do diagonals of quadrilateral make triangles?

Yes


How many diagonals does a regular octagon have?

It has 20 diagonals and is made up by 6 triangles


If all of the diagonals are drawn from a vertex of an n-gon how many triangles are formed?

If all of the diagonals are drawn from a vertex of an octagon, how many triangles are formed


How A pentagon can be divided into how many triangles by drawing all of the diagonals from 1 vertex?

Three triangles


How many triangles can be formed by the diagonals of one vertex of a four-sided polygon?

Two triangles can be formed by the diagonals of one vertex of a four-sided polygon.