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Subjects>Math>Math & Arithmetic

How many diagonals does a 2d decagon have?

Updated: 11/1/2022

Wiki User

∙ 7y ago

Best Answer

54 Diagonals.

* * * * *

A polygon with n sides has 1/2*n*(n-3) diagonals. So a decagon would have 1/2*10*7 = 35 diagonals. How the Community answer got 54 is anybody's guess!

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∙ 7y ago

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Continue Learning about Math & Arithmetic

how many diagonals decagon have?

35

How many line segmants are in a decagon?

A decagon has 10 sides and 35 diagonals

How many vertices does a 2d decagon have?

Ten.

Is a decagon 2D?

Yes.

What polygon has 20 diagonals?

decagon

Related questions

How many diagonals in decagon?

There are 35 diagonals in a 10 sided decagon

How many diagonals are there in a 2d diamond?

In a 2d diamond there are 2 diagonals.

How many diagonals does tetra-decagon have?

A tetra-decagon is a 14 sided polygon having 77 diagonals

How many diagonals are in a Decagon?

35.

How many diagonals in decagon have?

35

how many diagonals decagon have?

35

How many line segmants are in a decagon?

A decagon has 10 sides and 35 diagonals

How many diagionals does a decagon have?

35 diagonals

How many vertices does a 2d decagon have?

Ten.

How many diagonal in a regular decagon?

35 diagonals

What is a ten sided shaped called?

Decogon * * * * * A decagon, actually.

Is a decagon 2D?

Yes.

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