13 Shapes That Start With The Letter R

Are you searching for some shapes that start with the letter R? Don’t worry, you have come to the right place.

In this article, I will delve into the fascinating world of shapes and comprise a list of some common and popular shapes starting with the letter R for you.

So, without further ado, let’s discover the shapes beginning with the letter R, which will grow your geometric vocabulary skills.

Shapes That Start With Letter R

Below are the shapes that begin with the letter R (In alphabetical order):

1. Ray:

A ray is a straight line that originates from a fixed point called the endpoint and extends infinitely in one direction. It is commonly used in geometry to represent lines with a specific starting point but no definite endpoint.

2. Rectangle:

A rectangle is a quadrilateral with four right angles, making it a parallelogram with equal opposite sides. This shape is widely encountered in everyday life, from book pages to computer screens.

3. Regular Dodecagon:

A regular dodecagon is a twelve-sided polygon with twelve equal sides and twelve equal angles. It is a symmetrical and mesmerizing shape often used in art and architecture.

4. Regular Hexagon:

The regular hexagon is a six-sided polygon with all sides of equal length and internal angles measuring 120 degrees. This shape appears in nature, such as honeycomb structures created by bees.

5. Regular Octagon:

With eight equal sides and eight equal angles, the regular octagon is a stunning shape that frequently appears in design and decorative patterns.

6. Regular Pentagon:

The regular pentagon is a five-sided polygon, each side and angle identical to the others. This shape can be found in the famous Pentagon building in the United States.

7. Regular Polygon:

A regular polygon is any closed shape with straight sides that are all the same length and internal angles that are equal. The most well-known examples include triangles, squares, and circles.

8. Regular Polyhedra:

These are three-dimensional shapes with flat faces, and each face is a regular polygon. Examples of regular polyhedra include the cube and the tetrahedron.

9. Rhombus:

A rhombus is a parallelogram with four equal sides, and its opposite angles are congruent. It often appears in jewelry and is a popular choice for creating eye-catching designs.

10. Right Triangle:

A right triangle is a triangle with one 90-degree angle (a right angle). The Pythagorean theorem is essential for solving problems involving right triangles.

11. Ring:

A ring is a circular shape with a hole in the center. Rings are not only used for fingers but also in various mechanical and engineering applications.

12. Rose Curve:

A rose curve is a unique shape that resembles a petal-like pattern. It is generated by plotting mathematical equations and is a captivating mathematical concept.

13. Round:

Although not a specific geometric shape, “round” refers to any shape that is circular or spherical. It is a simple yet versatile shape used in many applications, from wheels to food items.

Hope you found this article about “shapes that start with R” educative and helpful.

Do you know any other shapes that start with the letter R, that didn’t make the list?

Feel free to leave a comment below with the missing shapes and I’ll update the list as soon as possible.

And, if you are looking for other shapes that start with other letters, make sure to check my blog posts. Such as:

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top