How Many Sides Does A Regular Polygon Have If The Interior Angle Is 18?

What is a 70 sided shape called?

heptacontagonIn geometry, a heptacontagon (or hebdomecontagon from Ancient Greek ἑβδομήκοντα, seventy) or 70-gon is a seventy-sided polygon.

The sum of any heptacontagon’s interior angles is 12240 degrees..

How many sides does a regular polygon have if the interior angle is 175?

72 sidesA regular polygon with each interior angle of 175 deg will have each exterior angle as 180–175 = 5 deg. Hence the number of sides in the regular polygon = 360/5 = 72 sides.

What is the angle of a 8 sided polygon?

135°In geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, “eight angles”) is an eight-sided polygon or 8-gon….Octagon.Regular octagonSchläfli symbol{8}, t{4}Coxeter diagramSymmetry groupDihedral (D8), order 2×8Internal angle (degrees)135°5 more rows

What is a 20 sided polygon called?

icosagonIn geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon’s interior angles is 3240 degrees.

What is a 69 sided polygon called?

Systematic polygon namesTensand60hexaconta–kai-70heptaconta-80octaconta-90enneaconta-5 more rows

How many sides does a regular polygon have if the interior angle is 1080?

8 sidesThe polygon with an interior angle sum of 1080° is an octagon, or a polygon with 8 sides. We are given that the interior angle sum of our polygon…

How many sides does a regular polygon have if each interior angle is?

The answer is 180° – 72° = 108°. (b) Calculate the number of sides in the regular polygon. We do this by dividing 360° by the size of one exterior angle, which is 72°. The answer is 360° ÷ 72° = 5 sides….Question 2.(a) a regular decagonexterior = °interior = °(b) a regular pentagonexterior = °interior = °

How many sides does a regular polygon have if the interior angle is 150?

12 sidesIf each angle of a regular polygon measures 150°, then the polygon has 12 sides.

What is a 19 sided shape called?

EnneadecagonIn geometry an enneadecagon or enneakaidecagon or 19-gon is a nineteen-sided polygon.

What’s a 13 sided shape called?

tridecagonIn geometry, a tridecagon or triskaidecagon or 13-gon is a thirteen-sided polygon.

How do you find the interior angle of an N sided polygon?

Interior and exterior angle formulas:The sum of the measures of the interior angles of a polygon with n sides is (n – 2)180.The measure of each interior angle of an equiangular n-gon is.If you count one exterior angle at each vertex, the sum of the measures of the exterior angles of a polygon is always 360°.

How do you find the interior angle of an 18 sided polygon?

To find the sum of the interior angles for any polygon use (n-2)*180 degrees where n is the number of sides.

How many sides does a shape with an interior angle of 160 have?

18 sidesAnswer. If the interior angle of a regular polygon is 160 degrees, then the exterior angle is 20 degrees. The sum of all exterior angles is 360 degrees so there must be 360/20 sides = 18 sides.

What is a 100000 sided shape called?

A megagon or 1 000 000-gon is a polygon with 1 million sides (mega-, from the Greek μέγας megas, meaning “great”).

What is 12 sided shape called?

dodecagonIn geometry, a dodecagon or 12-gon is any twelve-sided polygon.

What is the interior angle of a 18 sided shape?

Regular PolygonsSidesNameInterior Angles18Octdecagon160.00°19Enneadecagon161.05°20Icosagon162.00°30Triacontagon168.00°25 more rows

What is a 10 sided shape?

In geometry, a decagon is a ten-sided polygon or 10-gon.

How many sides does a polygon have with an interior angle of 720?

**The students should see the pattern of numbers from the 1st column to the 4th column.Number of SidesName of PolygonSum of interior angles3Triangle180 degrees4Quadrilateral360 degrees5Pentagon540 degrees6Hexagon720 degrees6 more rows

What is an 18 Gon?

In geometry, an octadecagon (or octakaidecagon) or 18-gon is an eighteen-sided polygon.

What is a polygon with 18 sides?

An 18-sided polygon, sometimes also called an octakaidecagon.

What is a 99 sided shape called?

Polygons with 21 to 99 sides have a different system. Take the prefix for the tens digit (found on the left column), the ones digit (right column below), and then stick a “kai” between them to get (tens)kai(ones)gon . The 3-digit sided polygons are named in a similar fashion. A 100-sided polygon is called a hectogon.