# What is the shape of a Heptagon?

A polygon is an enclosed two-dimensional shape with straight sides. This includes triangles, quadrilaterals, pentagons, etc but not circles or ovals. A heptagon is a seven-sided polygon. Along with seven sides, a heptagon has seven vertices and angles.
A.

### How many sides are there in a septagon?

7
• #### What is the name of a 9 sided shape?

In geometry, a nonagon /ˈn?n?g?n/ (or enneagon /ˈ?niː?g?n/) is a nine-sided polygon or 9-gon. The name "nonagon" is a prefix hybrid formation, from Latin (nonus, "ninth" + gonon), used equivalently, attested already in the 16th century in French nonogone and in English from the 17th century.
• #### What is the name of a shape with 100 sides?

Polygons are named after the number of sides that they have. A 100-sided polygon is called a hectogon. Take the hundreds digit, find it on the column for ones digits, then stick a "hecta" to its right. Now number off the tens and ones like above: (hundreds)hecta(tens)kai(ones)gon .
• #### What is the name of a six sided shape?

Hexagon. A hexagon is a 6-sided polygon (a flat shape with straight sides). Regular Hexagon. Area = 23.38268590218. Angles.
B.

### What is the angle of Heptagon?

To find the measure of the interior angles, we know that the sum of all the angles is 900 degrees (from above) And there are seven angles So, the measure of the interior angle of a regular heptagon is about 128.57 degrees.
• #### Do all quadrilaterals have 360 degrees?

The Quadrilateral Sum Conjecture tells us the sum of the angles in any convex quadrilateral is 360 degrees. Remember that a polygon is convex if each of its interior angles is less that 180 degree.
• #### Which polygon has interior angles whose sum is 1440?

You can start with the formula for the sum of the interior angles (S) of a regular polygon of n-sides: Since you know that this sum is 1440 degrees, you can substitute this into the formula and solve for n, the number of sides. The regular polygon has 10 sides. This is known as a decagon.
• #### What is an irregular Heptagon?

This includes triangles, quadrilaterals, pentagons, etc but not circles or ovals. A heptagon is a seven-sided polygon. A regular heptagon is a heptagon that has congruent sides and angles. An irregular heptagon is any heptagon with sides and angles that are not all congruent.
C.

### How many sides are there in a Heptagon?

7 sides

10 sides
• #### What is the name of a 8 sided shape?

In geometry, an octagon (from the Greek ?κτάγωνον oktágōnon, "eight angles") is an eight-sided polygon or 8-gon. A regular octagon has Schläfli symbol {8} and can also be constructed as a quasiregular truncated square, t{4}, which alternates two types of edges. A truncated octagon, t{8} is a hexadecagon, t{16}.
• #### What is the shape that has 12 sides?

Regular dodecagon. A regular dodecagon is a figure with sides of the same length and internal angles of the same size. It has twelve lines of reflective symmetry and rotational symmetry of order 12.

Updated: 2nd October 2019