Question

Is the circle a solid shape?

Answer 1

Hint: Solid shapes are nothing but solids that consist of 3 dimensions, namely length, breadth, and height. Solid shapes are also known as 3D shapes. These solid shapes occupy space and are found in our day-to-day life like laptop, phones, stone, table, etc. are solid figures.

Complete step by step solution:
A circle is locus of points in a plane that are at equal distances from the center. The distance from the center to the set of points is the radius of the circle as shown in the figure. Area of circle is given by the formula:
\[Area = \pi {r^2}\]
In which r is the radius of the circle and where \[\pi \]= 3.142.

A circle is not a solid shape. A circle is a closed, two-dimensional figure or a flat figure. Therefore, it is a plane shape. A circle is a round figure that does not have any sides or corners. The examples of circles are a ring, a circular fencing on a ground, etc.
Solids are three dimensional shapes that have volumes. For example, a sphere, a cone, a cube, etc. are solids that have surface area and volume. But a circle does not have volume as a parameter, it only has area.
Circumference of a circle is the total distance covered by the outer boundary of the circle in one complete rotation. The formula of circumference is:
\[Circumference = 2\pi r\]
The major types of solid shapes are: cubes, cuboids, prisms, pyramids, platonic solids, torus, cone, cylinder, and sphere.

Note: In a mathematical term, a 3D shape has three dimensions. The D in 3D stands for dimensional. 3-D Shapes have four properties that set them apart from 2-d shapes i.e., faces, vertices, edges and volume. These properties not only allow you to determine whether the shape is 2-d or 3-d but also which 3-d shape it is.