Table of Contents
How many angles does a 10 sided polygon have?
1,440°
A decagon is a 10-sided polygon, with 10 interior angles, and 10 vertices which is where the sides meet. A regular decagon has 10 equal-length sides and equal-measure interior angles. Each angle measures 144° and they all add up to 1,440° .
What is the polygon that has 10 vertices?
decagon
A decagon is known as a ten-sided shape or polygon with ten vertices and ten angles. When any shape is formed by joining 10 sides, it is called a decagon.
Which of the following options is a figure with ten sides?
A polygon having 10 sides is called: A. Octagon B. Decagon C. Dodecagon D. None of these
| Shape | Number of sides |
|---|---|
| Nonagon | 9 |
| Decagon | 10 |
| Undecagon | 11 |
| Dodecagon | 12 |
Is a d10 a Platonic solid?
Platonic solids are ideal dice. The d10 and the d% are not Platonic Solids. While the most common diamond d10 shape (pentagonal trapezohedron) does have faces the same size and shape, it does not have same number of faces meeting at each corner.
What shape can you make with 10 triangles?
The eight convex deltahedra
| Regular deltahedra | ||
|---|---|---|
| Name | Faces | Vertices |
| pentagonal bipyramid | 10 | 7 |
| snub disphenoid | 12 | 8 |
| triaugmented triangular prism | 14 | 9 |
What is the sum of the angles of a regular polygon with 10 sides?
The sum of the exterior angles of a regular polygon of 10 sides = 360 deg. The sum of the interior angles of a regular polygon of 10 sides = 10* [180 – (360/10)] = 10 (180–36) = 10*144 = 1440 deg. Each interior angle = 180°-36° =144°. Sum of the all interior angles = 144°×10. =1440° .
What does the word polygon mean in math?
Poly- means “many” and -gon means “angle”. A regular polygon has all angles equal and all sides equal, otherwise it is irregular A convex polygon has no angles pointing inwards. More precisely, no internal angle can be more than 180°. If any internal angle is greater than 180° then the polygon is concave.
How are the interior angles of a polygon equal to each other?
A regular polygon has all its interior angles equal to each other. For example, a square has all its interior angles equal to the right angle or 90 degrees. The interior angles of a polygon are equal to a number of sides.
How to find the number of sides of a polygon?
The formula to find the number of sides of a regular polygon is as follows: Number of Sides of a Regular Polygon = 360° / Magnitude of each exterior angle. Therefore, the number of sides = 360° / 36° = 10 sides. Hence, the polygon has 10 sides.