The shape can be defined as the boundary or outline of an object. It is the surface we see and does not depend on the size or the color of the object. Everything around us has a different shape, such as the square, rectangle, or three-dimensional sphere. Have you seen the model of the Earth called the globe? What is the shape of this globe? Have you noticed the shape of a pizza? It is round in shape. If we cut out a slice from the pizza, the slice gets a triangular shape. Let us learn all about shapes, types of shapes, and geometric shapes.
|1.||What are Shapes?|
|2.||Types of Shapes|
|3.||List of Shapes|
|4.||FAQs on Shapes|
What are Shapes?
Shapes define the boundary of an object and can be differentiated in many ways based on their properties. These shapes are closed by a boundary which is made by combining the curves, points, and line segments. Each shape has a name depending upon the structure. Few shapes are circle, square, rectangle, triangle, and so on.
Types of Shapes
Shapes can be classified into various categories. Before classifying shapes further in separate structures the basis of each shape depends on the following classification:
- Open Shapes: Open shapes are not continuous and are made up of line segments or curves which do not meet. Letter C is an example of an open shape.
- Closed Shapes: Closed shapes can be traced without any break. They start and end in the same place. Letter D is an example of a closed shape.
Further, each shape is classified on the basis of dimensions it has. In this section, we will discuss the two major types of shapes:
- Two-dimensional (2D): 2D shapes, as the name suggests, have only two of these measurements, i.e., length and breadth.
- Three-dimensional (3D) shapes: 3D shapes have a length, a width, and a height. You can learn more about it here.
A square is a 2D shape, whereas, a cube is a 3D shape.
List of Shapes
We know that shapes are made of straight lines or curved lines and they can be open or closed. Lines are defined as a collection of points. In other words, many points are put together to form a line. They may form a straight line or a curved line. Shapes are closed shapes that are created by joining lines together. Closed shapes made of four straight lines are called quadrilateral shapes. Given Below is the list of shapes with real-world examples.
- Circle: A circle is a closed shape. It is categorized as a two-dimensional geometric shape that is round in structure. It does not have any lines or corners. For example, the wheel of a vehicle, pizza base, dartboard.
- Oval: An oval is an elongated shape slightly similar to a circle. It has no straight lines or corners. For example, the number zero (0).
- Square: A square is a closed 2-D shape that is formed by four sides. The length of each side is equal in measurement. For example, a chessboard and a carrom board.
- Triangle: A triangle is a shape with three sides and is categorized as a two-dimensional geometric shape. For example, the shape of tangy nachos, one slice of cheese burst pizza.
- Rectangle: A rectangle has four sides. It is a two-dimensional geometric shape in which the length of the opposite sides is equal. For example, laptop screen, touch screen mobile phones etc.
- Polygons: A polygon is a closed two-dimensional figure with three or more straight lines. For example, windows, doors.
- Cube: A cube is a closed three-dimensional geometric shape. It is made up of six squares. It has six faces. For example, a Rubik's cube, a ludo dice, an ice cube.
- Cuboid: A cuboid is another three-dimensional shape that is formed using rectangles. For example, a duster, a book, a pencil box.
- Sphere: A sphere is a solid shape that is similar to a ball. It is a closed three-dimensional shape formed using a circular base. For example, football, basketball, etc.
- Cylinder: A cylinder is a solid shape that has two flat ends of circular formation. It is a three-dimensional figure which is formed by folding a rectangle. For example, coldrink cans, pool noodles, water bottles.
- Cone: A cone is a solid three-dimensional geometric shape with a flat base. The base is circular in shape. It has a pointed edge at the top called the apex. For example, ice-cream cone, clown hat, etc.
Check out the following articles to learn more about different shapes in detail.
Example 1: Solve the following riddles and write the name of the shapes.
a) I have three sides and a complete plane surface. Who am I?
b) I am a closed 3D shape formed with six squares. Who am I?
a) Triangle is a plane 2D shape with three sides.
b) Cube is a closed 3D shape with 6 squares.
Example 2: Eva is holding a gaming gadget. Its screen has 4 sides. Can you name the shape of the gadget screen?
Solution: Since Eva has a gaming gadget with specifically four sides. It could be a mobile phone screen or a tablet screen. Hence the shape of a gadget screen is rectangular.
Example 3: Name two letters that are perfect examples of a closed shape and an open shape.
Solution: Letter O is a perfect example of a closed shape. It is round in shape hence it is also an example of a circle.
Letter U is an open shape. It is open at the other end.
FAQs on Shapes
What are Shapes in Geometry?
Shapes are also known as geometric shapes and figures made up of fixed lines or curves. Shapes are categorized as closed shapes or open shapes. In our real-life, the example of shapes are, the Sun, Earth, Doors, Windows, Watch, Wall clocks, and so on.
What are the Different Types of Shapes?
The shapes have two major types:
- The two-dimensional shapes
- The three-dimensional shapes
What are Two-Dimensional Shapes?
A 2D shape is also written as a two-dimensional shape is a shape that has length and width but no depth. Examples of two-dimensional shapes are Circle, square, rectangle, triangles.
What are Three-Dimensional Geometric Shapes?
In geometry, a three-dimensional shape is a solid shape that has three dimensions, length, width, and height. We generally write it as 3D- shapes. For example, cylinder, sphere, cuboid.
Write the List of Shapes.
There are various shapes categorized on the basis of their dimensions. Given below is the list with one real-world example.
List of 2D geometric shapes:
- Triangle: traffic signboards
- Square: chessboard
- Rectangle: UNO game cards
- Circle: dinner plates
- Oval: Number 0 (zero).
List of 3D geometric shapes:
- Cube: ice cubes
- Cuboid: bricks
- Cylinder: Cold drinks straws
- Sphere: oranges
- Hemisphere: bowls
- Cone: birthday party caps
Why are Shapes Important for Kids?
Shapes help children develop the understanding of identifying visual information about structures revolving around them. It also helps kids in building navigation skills by easily comparing various shapes.
What is the Use of Geometric Shapes?
Shapes refresh our visual senses in an interesting way. They developed and generate a logical sense of any piece of work in our everyday life. Things around us need a definite shape to recognize and to maintain the balance in nature.
How Many Dimensions Are There in a 2D Shape?
There are only two dimensions in a 2D shape that is a length and breadth.
How Many Dimensions Are There in a 3D Shape?
There are only three dimensions in a 3D shape that is a length, width, and height.
How do you Identify Shapes?
A great way to identify a shape is by knowing the number of sides and points in it. For example, a triangle has 3 sides and 3 points. So, we can easily identify it as a triangle.
☛ Also Check:
Is Square a Closed Shape?
Yes, a square is a closed shape as all the sides of the square are connected at all the vertices.