Any object around us with a structure can be considered as a geometric shape. These different shapes of geometry are made up of lines, curves, angles, and surfaces. The shapes in geometry can be either open or closely bound.
|1.||Geometric Shapes Definition|
|2.||Types of Geometric Shapes|
|3.||Two-Dimensional Geometric Shapes|
|4.||Three-Dimensional Geometric Shapes|
|5.||Geometric Shapes Examples|
|6.||Practice Questions on Geometric Shapes|
|7.||FAQs on Geometric Shapes|
Geometric Shapes Definition
Geometric Shapes are figures closed by a boundary which is made by combining the definite amount of curves, points, and line segments. Each geometry shape has a unique name such as circle, square, triangle, rectangle. In real life, we are surrounded by geometric shapes, like the slice of a pizza is in the shape of a triangle, doors or windows are in the shape of a rectangle, and many more.
Types of Geometric Shapes
In geometry, when an object or a shape is not connected with both ends, it is considered an open geometric shape. When an object or a shape is connected with both ends it is considered a closed geometric shape. There are two types of geometric shapes classified as:
- Two-dimensional geometric shapes: These are 2D shapes that have only the x-axis and y-axis. They are flat structures with 2 dimensions. For example, triangle, square, rectangle, etc.
- Three-dimensional geometric shapes: These are 3D shapes that have an x-axis, y-axis, and z-axis. The z-axis represents the height of the object. They are solid structures with 3 dimensions. For example, cube, cuboid, etc.
To draw any of these figures we have to start with a line, a curve or a line segment. Thus, based on the number and arrangement of the lines we can make different types of shapes and figures, for example, by joining four line segments a rectangle shape is formed. A triangle can be formed by joining three-line segments and so on.
Look at the chart given below which represents different two-dimensional and three-dimensional geometric shapes.
Two-Dimensional Geometric Shapes
Let us learn about the five basic 2-dimensional geometric shapes.
- Triangle: A triangle is a closed two-dimensional geometric shape with three sides. For example, a slice of pizza, the shape of nachos.
- Square: A square is a two-dimensional geometric shape that is formed by four sides of equal length. For example, the shapes of a chessboard and a carrom board.
- Rectangle: A rectangle is a four-sided, two-dimensional geometric shape in which the length of the opposite sides is equal. For example, laptop screen, etc.
- Circle: A circle is a closed two-dimensional geometric figure that is round in shape. A circle does not have any lines or corners. For example, pizza base, wheel.
- Oval: An oval is similar to a circle but its shape is slightly elongated. An oval has no straight lines or corners. For example, the number zero (0).
Three-Dimensional Geometric Shapes
Let us learn about the six basic 3-dimensional geometric shapes.
- Cube: A cube is a 3D geometric shape, made up of six squares of equal sides. For example, a ludo dice, a rubik's cube
- Cuboid: A cuboid is a 3D geometric shape that is formed by six rectangles. For example, a book, a box
- Cylinder: A cylinder is a solid 3D geometric shape that has two identical circular flat ends. For example, coldrink cans, pool noodles.
- Sphere: A sphere is a solid 3D geometric shape that looks like a ball. For example, football, basketball, etc.
- Hemisphere: A hemisphere is a geometric shape that is half of a sphere. For example, Soup bowls.
- Cone: A cone is a 3D geometric shape that has a flat circular base and 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 geometry shapes.
Geometric Shapes Examples
Example 1: Give a list of geometric shapes with two real-life examples.
Solution: The list of geometric shapes with real-life examples is given below:
List of 2D geometric shapes:
- Triangle: a set square, traffic signboards
- Square: virtual keyboard keys, chessboard
- Rectangle: dollar note, UNO cards
- Circle: Alphabet O, dinner plates
- Oval: Human eyes, the earth's orbit around the sun.
List of 3D geometric shapes:
- Cube: dice, ice cubes
- Cuboid: bricks, duster
- Cylinder: straight pipes, straws
- Sphere: oranges, planets
- Hemisphere: bowls, igloo
- Cone: party caps, funnel
Example 2: Answer the following questions on the basis of your understanding of geometric shapes.
a) I am round in shape with zero straight lines and one complete flat surface. Who am I?
b) I am a closed 2D shape formed with three straight lines. Who am I?
a) Circle: A circle is a 2-dimensional geometric shape with zero straight lines and one complete round flat surface.
b) Triangle: A triangle is a 2D geometric shape with three straight lines.
Example 3: Write the number of straight lines in the following geometric shapes.
a) Triangle: A triangle has three straight lines.
b) Rectangle: A rectangle has four straight lines.
c) Square: A square has four straight lines. All four lines are equal.
d) Circle: A circle has zero straight lines. It is round in shape.
FAQs on Geometric Shapes
What are Geometric Shapes in Geometry?
Geometric shapes are also known as geometric figures made up of a combination of lines or curves. In our real-life we are surrounded by geometric figures, such as, windows which are in the shape of squares, or, doors that are in the shape of rectangles, etc.
What are the Different Types of Geometric Shapes?
There are two types of geometric shapes: two dimensional and three-dimensional geometric shapes. Two dimensional shapes are closed figures with a length and a breadth such as square, rectangle. Three dimensional shapes are also closed figures that have a length, a breadth and a height, such as cuboid, cube.
Is a Straight Line a Geometric Shape?
A straight line is an open geometric shape that only has a length. When many straight lines are joined together, they form shapes like squares, triangles, and so on.
What are Three-Dimensional Geometric Shapes?
In geometry, a three-dimensional geometric shape is a solid figure or shape with three dimensions that is length, width, and height. For example, cylinder, sphere, cuboid.
What are Two-Dimensional Geometric Shapes?
A two-dimensional geometric shape is a shape that has length and width but no height or depth. Circle, square, rectangle, triangle are examples of a two-dimensional shape.
List any 8 Names of Geometric Shapes.
Following is the list of a few geometric shapes.
What are the Basic Geometric Shapes?
There are many geometric shapes or figures based on their dimensions. Circle, triangle, square, rectangle are a few of the basic 2-d shapes. Cube, cuboid, sphere, cone, and cylinder are a few of the basic 3-dimensional figures or shapes.
Give Examples of the Basic Geometric Shapes in Real Life?
A few examples of geometric shapes in real life are listed below:
- Circle: cookies, wheels of a bike
- Square: square tiles on the floor, square paper napkins
- Rectangle: text books, cell phones, a television screen
- Triangle: a sandwich cut diagonally, traffic signboards
What is the Use of Geometric Shapes?
Geometric shapes refresh our visual senses in a logical, practical, and interesting way. They give a sense of order and accuracy to a piece of work and everyday life.
Why are Geometric shapes Important for Kids?
Learning geometric shapes helps children identify visual information and also helps them in organizing and learning skills in different areas. Kids develop facial recognition and navigation skills if they are able to categorize and compare various shapes.