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How many triangles does a 20 sided polygon contain?

Updated: 4/28/2022

Wiki User

∙ 13y ago

Best Answer

it would have 18 triangles because u take 2 away each time.

Wiki User

∙ 13y ago

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Q: How many triangles does a 20 sided polygon contain?

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Continue Learning about Geometry

How many triangles does a 30 sided polygon contain?

A 30 sided polygon contains 28 triangles.

How many triangles does a 38 sided polygon contain?

It contains 36 triangles

How many triangles in a 19 sided polygon?

There are 17 triangles in a 19 sided polygon

How many triangles are in an 11 sided polygon?

Any n-sided regular polygon, by joining a single vertex up to each of the others, will have a total of (n - 2) triangles inside. In this case, an 11-sided polygon will contain 11 - 2 = 9 triangles.

How many triangles has a 25 sided polygon?

It has 23 triangles

Related questions

How many triangles does a 30 sided polygon contain?

A 30 sided polygon contains 28 triangles.

How many triangles does a 38 sided polygon contain?

It contains 36 triangles

How many triangles in a 17 sided polygon?

there are 15 triangles in a 17 sided polygon

How many triangles in a 19 sided polygon?

There are 17 triangles in a 19 sided polygon

How many triangles are in an 11 sided polygon?

Any n-sided regular polygon, by joining a single vertex up to each of the others, will have a total of (n - 2) triangles inside. In this case, an 11-sided polygon will contain 11 - 2 = 9 triangles.

How many triangles do you get with a 5-sided polygon?

There are 3 triangles inside a 5 sided pentagon polygon

How many triangles has a 25 sided polygon?

It has 23 triangles

How many triangles does a 36 sided polygon have?

It has 34 triangles

How many triangles can a 7 sided polygon have?

It can have 5 triangles

How many triangles are in a 20 sided polygon?

18. If a polygon has n sides, then it has n-2 triangles.There are 18 triangles in a 20 sided polygon.

How many triangles in 8 sided polygon?

There are 6 triangles

How many triangles in a 100 sided polygon?

7000 triangles

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