3D Shapes and 2D Shapes Names
In geometry, shapes can be classified into two main categories: 2D (two-dimensional) shapes and 3D (three-dimensional) shapes. These shapes have different properties and are used to represent various objects in the real world.
2D Shapes Names
2D shapes are flat shapes that have only two dimensions: length and width. These shapes can be drawn on a piece of paper and do not have any thickness or depth. Here are some common 2D shape names:
1. Square
A square is a quadrilateral with all sides of equal length, where all internal angles are right angles (90 degrees).
2. Rectangle
A rectangle is a quadrilateral with opposite sides of equal length, where all internal angles are right angles (90 degrees).
3. Triangle
A triangle is a polygon with three sides and three vertices, where the sum of the internal angles is 180 degrees.
4. Circle
A circle is a set of points that are equidistant from a central point called the center.
5. Hexagon
A hexagon is a polygon with six sides and six vertices, where all internal angles are equal.
6. Octagon
An octagon is a polygon with eight sides and eight vertices, where all internal angles are equal.
3D Shapes Names
3D shapes are three-dimensional shapes that have length, width, and height. These shapes can be found in the real world and have volume. Here are some common 3D shape names:
1. Cube
A cube is a solid shape with six square faces of equal size, where all edges are of equal length.
2. Sphere
A sphere is a set of points that are equidistant from a central point called the center, where all points on the surface are equal distance from the center.
3. Cylinder
A cylinder is a solid shape with two parallel and circular bases connected by a curved lateral surface.
4. Pyramid
A pyramid is a polyhedron with a square base and four triangular faces that meet at the apex.
5. Cone
A cone is a solid shape with a circular base and a curved lateral surface that tapers to a point.
6. Torus
A torus is a solid shape that is shaped like a doughnut, with a central hole and a curved surface.
In conclusion, understanding the names and properties of 2D and 3D shapes is essential in geometry and is used in various fields such as engineering, architecture, and design.
