ClassX Video Lessons Youtube Channel Smile and Learn English Area of a Triangle ???? Math for Kids ????
Hello friends! Today, we’re going to learn how to find the area of a triangle. This is also called the surface area of a triangle. Let’s dive in!
A triangle is a shape with three sides, three angles, and three corners, called vertices. It’s the simplest shape with the fewest sides. We can measure its area in square units like square inches, square feet, or square miles.
There are different kinds of triangles, such as:
The area of a triangle is the space inside it. To find this area, we use a simple formula: Area = (Base × Height) ÷ 2.
Let’s try this with a right triangle. Suppose the base is 4 inches, and the height is 3 inches. To find the area, multiply the base by the height and then divide by two:
So, the area of this triangle is 6 square inches. This means it can fit six one-square-inch squares inside.
Anna wants to paint the front of her triangular house. She needs to know the area to buy the right amount of paint. If the base is 10 feet and the height is 30 feet, what’s the area?
The area of Anna’s house wall is 150 square feet. She’ll need enough paint to cover that area!
Knowing how to calculate the area of a triangle is useful for many things, like building, crafting, and even art. Remember, just multiply the base by the height and divide by two.
Are you ready to try calculating the area of other triangles on your own? Have fun exploring!
We’ve learned a lot today! If you want to learn more, check out other educational videos. There’s so much more to discover!
Let’s play a game where you identify different types of triangles! I’ll show you pictures of triangles, and you need to decide if they are equilateral, scalene, isosceles, acute, right, or obtuse. This will help you remember the different types of triangles and their properties.
Using sticks or straws, create different types of triangles. Measure the sides and angles to see if you can make equilateral, scalene, and isosceles triangles. This hands-on activity will help you understand the properties of each type of triangle.
I’ll give you a set of triangles with different base and height measurements. Your task is to calculate the area of each triangle using the formula: Area = (Base × Height) ÷ 2. Let’s see how quickly you can find the area!
Go on a hunt around your home or school to find real-life examples of triangles. Take pictures or draw them, and then calculate their approximate area. This will show you how triangles are everywhere in the world around us!
Create a piece of art using only triangles. Use different types and sizes of triangles to make a picture or pattern. Calculate the area of each triangle you use and add them up to find the total area of your artwork. This will help you practice calculating area while being creative!
Sure! Here’s a sanitized version of the YouTube transcript:
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Hello friends! Today we’re going to show you how to calculate the area of a triangle, also known as the surface area of a triangle.
Let’s start by remembering what a triangle is. A triangle is a plane figure with three sides, three angles, and three vertices. This makes it the geometric figure with the fewest sides. Its area can be measured in square inches, square feet, square miles, and many other units of measurement.
As you know, there are different types of triangles: equilateral, scalene, isosceles, acute, right, and obtuse triangles. Today, we will learn how to calculate the area of all of them.
As you can see in this image, the area of a triangle is the number of square units that the figure contains inside. To calculate the area of a triangle, we use the following formula: the area of a triangle is equal to the base times the height divided by two.
Let’s practice with a right triangle. The base of this triangle measures four inches, and its height measures three inches. What will its area be?
To calculate the area of a triangle, we multiply the base by its height and then divide by two. That is, four times three equals twelve, and twelve divided by two equals six. Great! The area of this triangle is equal to six square inches. This triangle contains six one-square-inch squares.
Knowing the area of the triangle is very important. Let’s look at another example. Anna wants to paint the front of her triangular house. She wants to know the area of the wall to find out how much paint she needs to buy. If the base is 10 feet and the height is 30 feet, what is the total area?
Remember that we must multiply the base by the height and divide by two. Let’s see: ten times thirty equals three hundred, and three hundred divided by two equals one hundred fifty. Very good! The area of Anna’s triangular house wall is 150 square feet. She’ll need to buy a lot of paint!
As you can see, knowing how to calculate the area of a triangle is very important. You only have to multiply the base by the height and divide the result by two.
Are you ready to calculate other triangles on your own? See you later!
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We’ve learned so much in just one video! Did you know there are many more videos? Imagine how much you could learn! Subscribe to the Smile and Learn educational channel to learn and have fun at the same time.
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Let me know if you need any further modifications!
Triangle – A polygon with three sides and three angles. – A triangle has three corners, which are called vertices.
Area – The amount of space inside a shape. – To find the area of a rectangle, multiply its length by its width.
Base – The bottom side of a geometric figure from which the height is perpendicular. – In a triangle, the base can be any one of its three sides.
Height – The perpendicular distance from the base to the top of a shape. – The height of a triangle is used to calculate its area.
Angles – The space between two intersecting lines or surfaces at or close to the point where they meet. – The sum of the angles in a triangle is always 180 degrees.
Sides – The lines that form the boundary of a shape. – A square has four equal sides.
Vertices – The points where two or more lines meet to form an angle. – A cube has eight vertices.
Equilateral – A triangle with all three sides of equal length. – An equilateral triangle also has three equal angles of 60 degrees each.
Scalene – A triangle with all sides of different lengths. – In a scalene triangle, all the angles are also different.
Isosceles – A triangle with at least two sides of equal length. – An isosceles triangle has two equal angles opposite the equal sides.
