International Math Olympiad is considered one of the most prestigious and competitive Math competitions in the world, and it attracts the best young mathematicians from around the globe. Participating in the International Mathematical Olympiad (IMO) is a great way to challenge and develop one’s mathematical skills.

Preparing for the IMO requires a high level of mathematical proficiency and problem-solving skills. By participating in the IMO, students have the opportunity to work on challenging problems, collaborate with other talented students, and improve their mathematical knowledge and skills.

By participating in the competition, students can elevate their learning and expand their knowledge about Math while also developing important skills that will benefit them throughout their academic and professional careers.

There are Olympiads for various subjects like:

International Science Olympiad (ISO)

International Math Olympiad (IMO)

International English Olympiad (IEO)

International General Knowledge Olympiad (IGKO).

Register now for IMO Olympiad Exam 2023

**IMO Class 4 Chapter 7: Area and Perimeter of Geometrical Figures Detailed **Overview

The concepts of area and perimeter are crucial in understanding and analyzing various two-dimensional shapes in mathematics. Both area and perimeter are important concepts in real-life situations, such as measuring the area of a field or the perimeter of a fence. They are also crucial in many mathematical problems and applications, such as those encountered in engineering, physics, and architecture.

**What is Area?**

Area is the amount of space occupied by a two-dimensional shape or object. Every shape has its own area, and it depends on its size and shape. For example, a square and a rectangle may have the same shape, but their areas are different because they have different sizes.

If we have two rectangular boxes with different lengths and widths, their areas will also be different. Only when both boxes have the same length and width will their areas be equal.

In simple terms, the area of a shape is like the space inside it. It depends on the size and shape of the shape, and different shapes have different areas. Even if two shapes have the same shape, their areas will be different if their sizes are different. To have the same area, two shapes need to have the same size and shape.

**What is Perimeter?**

The perimeter of a shape is the total distance around its edges. It is like the length of a shape if you were to stretch it out in a straight line. The perimeter of a two-dimensional shape is the complete length of its boundary.

Different shapes can have the same perimeter even if they have different measurements. For example, a circle made of a metal wire with a length of L can also be used to make a square with sides of the same length. This is because the circumference of a circle and the perimeter of a square can be the same, even though the shapes are different.

**Area and Perimeter For all Shapes**

Area and perimeter can be calculated for different shapes like squares, rectangles, circles, triangles, and many others.

**Area and Perimeter of a Rectangle**

The area of a rectangle can be found by multiplying its length by its width. The perimeter of a rectangle is the sum of the lengths of all its sides.

A rectangle’s perimeter equals = 2(a + b).

Rectangle Area = a x b

**Perimeter and Area of a Square**

The area of a square can be found by multiplying its length by its width. The perimeter of a square is the sum of the lengths of all its sides.

The perimeter of a Square = 4a

Area of a Square = a^{2}

**Perimeter and Area of Triangle**

The area of a triangle can be found by multiplying the length of its base by its height, and then dividing the result by 2. The perimeter of a triangle is the sum of the lengths of all its sides.

The perimeter of a triangle = a + b +c, where a, b and c are the three different sides of the triangle.

Area of a triangle = ½ x b × h; where b is the base and h is the height of the triangle.

**Area and Circumference of a circle**

The area of a circle can be found by multiplying the radius of the circle squared by the value of pi (π). The perimeter of a circle is known as its circumference, which can be found by multiplying the diameter of the circle by the value of pi (π).

Circumference of Circle = 2πr

Area of Circle = πr^{2}

**Applications of Area and perimeter **

Area is the amount of space inside a shape, and perimeter is the distance around the outside of a shape. These concepts are used in many real-life situations, such as:

- Fencing a garden or a field: The perimeter of the area to be fenced needs to be measured to determine the amount of fencing material required.
- Carpeting a room: The area of the room needs to be measured to determine how much carpet will be required to cover the floor.
- Painting a wall: The area of the wall needs to be measured to determine how much paint will be required to cover the wall.
- Buying tiles for a bathroom: The area of the bathroom floor needs to be measured to determine the number of tiles required to cover the floor.
- Planning a playground: The perimeter of the playground needs to be measured to determine the length of fencing required, and the area needs to be measured to determine the amount of ground surface area available for activities.

So, area and perimeter are important concepts that help us determine the size, amount, and quantity of things we need for many real-life situations.

**Advantages of IMO class 4**

- The Math Olympiad provides a challenging and competitive platform for students to showcase their mathematical skills and problem-solving abilities.
- It encourages students to develop a deeper understanding of Mathematics and to explore advanced concepts and theories.
- The Math Olympiad helps to foster a love of Math and inspires students to pursue further studies in this field.
- It promotes critical thinking, logical reasoning, and analytical skills, which are valuable in many different fields and professions.
- Participating in the Math Olympiad can enhance a student’s academic profile and improve their chances of admission to top universities and colleges.
- The Math Olympiad also offers students the opportunity to connect with other talented students from around the world and to build valuable networks and friendships.

**Also Read:** **How to prepare for Olympiads?**

School Connect Online offers Olympiads such as

1. National Science Olympiad (NSO)

2. International Mathematics Olympiad (IMO)

4. Artificial Intelligence Olympiad.

Prepare for your Olympiad coaching with the School Connect Olympiad by interacting with one of the greatest educators from IIT, NIT, as well as other institutions!

To know more: https://blog.schoolconnectonline.com/

Explore more at: https://www.schoolconnectonline.com/

**Related Links **

IMO Class 3 Chapter 8: Geometry

Science class 5 chapter 7 full details