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Earn +20 ptsQ: How many diagonals are in a polygon with 18 sides?
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Continue Learning about Geometry
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.
Each exterior angle of a regular polygon measures 20 How many sides does the polygon have?
18
How many sides does regular polygon have when its interior angle measures 160 degrees?
It has 18 sides
If each interior angle is 20 how many sides does the polygon have?
There is no such polygon but if you meant exterior angles of 20 degrees then it will have 360/20 = 18 sides
Each exterior angle of a regular polygon measures 20 degrees how many sides does the polygon have?
The sum of the exterior angles of any polygon is 360 degrees. If each angle is 20 degrees, there must be 360/20 = 18 such angles. 18 angles means 18 sides so it is an 18-sided polygon.
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