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How many triangles are formed by drawing diagonals from one vertex in a decagon?

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Updated: 11/5/2022

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How many triangles are formed in drawing diagonals in a square?

6

How many triangles can you divide a regular decagon?

A regular decagon can be divided into triangles by drawing diagonals from one vertex to all other non-adjacent vertices. This method results in a total of 8 triangles. Alternatively, using the formula for the number of triangles formed in a polygon, which is ( n - 2 ) (where ( n ) is the number of sides), a decagon (10 sides) can be divided into ( 10 - 2 = 8 ) 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.

Are 4 triangles formed by two diagonals of a trapezium congruent?

yes

How can quadrilaterals be formed by using 4 isosceles triangles?

The diagonals of a square for example divides it into 4 isosceles triangles

Related Questions

What is the number of triangles formed in a decagon when all the diagonals from one vertex are drawn?

8

How many triangles are formed in drawing diagonals in a square?

6

How many triangles are formed by drawing diagonals from one vertex?

depends on what shape that vertex is in

How many triangles are formed by drawing the diagonals from the vertex of a polygon with 23 sides?

21

Triangles formed by joining the vertices of a decagon?

Eight triangles.

How many triangles can be formed inside a decagon?

120 triangles.

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

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

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

5 triangles are formed.

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.

How many triangles are formed by the diagonals of a pentagon?

10

How many triangles are formed by the diagonals in a 21 sided polygon?

The number of triangles formed by the diagonals of a 21 sided polygon is C(21,3) = 21x20x19/3x2x1 = 1,330.

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