Welcome to Smile and Learn!
Hey everyone! Today, we’re going to learn how to find the area of a rectangle. This is also called the surface area of a rectangle.
Let’s start by remembering what a rectangle is. A rectangle is a shape with four sides and four right angles. It has two pairs of equal sides, which means the opposite sides are the same length and run parallel to each other.
The area of a rectangle is measured in square units. Depending on the size, we can use square inches, square feet, or even square miles if it’s really big!
Imagine a rectangle filled with tiny squares. The area is the total number of these squares that fit inside the rectangle.
To find the area of a rectangle, we use a simple formula: area equals length times width. We use the letter “l” for length and “w” for width.
Let’s practice! Suppose a rectangle has a length of 4 inches and a width of 3 inches. To find the area, we multiply the length by the width: 4 times 3 equals 12.
Awesome! The area of this rectangle is 12 square inches. This means 12 one-inch squares can fit inside the rectangle. Easy, right?
Knowing how to calculate the area is very useful. Let’s look at a real-life example!
The school principal wants to build a basketball court on the playground. The court is 90 feet long and 50 feet wide. How much space does she need?
To find out, we calculate the area of the basketball court, which is a rectangle. Remember, we multiply the length by the width: 90 times 50 equals 4500.
Great! The principal will need 4500 square feet to build the basketball court. Imagine how much fun we’ll have playing there!
If we counted, we’d find exactly 4500 square feet of space on the court.
Want to try an example? Find a meter stick and measure the next rectangular object you see. Remember, just multiply the length by the width to find the area. See you soon!
We’ve learned a lot today! Did you know there are many more videos? Imagine how much more you could learn! Subscribe to the Smile and Learn educational channel to learn and have fun at the same time.
Rectangle Hunt: Go on a rectangle hunt around your home or classroom. Find at least three rectangular objects, like a book, a door, or a table. Use a ruler or measuring tape to measure the length and width of each object. Calculate the area by multiplying the length by the width. Share your findings with a friend or family member and see if they can guess which object has the largest area!
Build Your Own Rectangle: Use building blocks or LEGO pieces to create different rectangles. Count how many blocks fit along the length and width, then multiply these numbers to find the area. Try making rectangles of different sizes and compare their areas. Which rectangle uses the most blocks?
Area Art: Draw a large rectangle on a piece of paper. Inside the rectangle, draw smaller squares or rectangles to create a fun design or picture. Count the number of squares or rectangles you used and calculate the total area of your artwork. Display your area art and explain how you calculated the area to your classmates or family.
Here’s a sanitized version of the YouTube transcript:
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[Music]
Welcome to Smile and Learn!
Hey everybody! Today we’re going to teach you how to calculate the area of a rectangle, also known as the surface area of a rectangle.
Let’s start by remembering what a rectangle is. A rectangle is a plane figure with four sides that make four right angles. It has two equal parallel sides, meaning its opposite sides are equal and parallel.
The area can be measured using different units of measurement depending on the system we use and its size. For instance, it can be measured in square inches, square feet, or square miles if it’s very large.
As you can see in this image, the area of the rectangle is the number of square units that the figure has inside it.
To calculate the area of a rectangle, we need to know the formula: area is equal to length times width. The length is represented by the letter “l,” and the width is represented by the letter “w.”
Let’s practice! This rectangle’s length is 4 inches, and the width is 3 inches. To calculate its area, we must multiply the length by the width: 4 times 3 equals 12.
Great! The area of this rectangle is equal to 12 square inches. That means 12 one-square-inch squares fit in this rectangle. Easy, isn’t it?
Knowing the area of a rectangle is very important. Should we take a look at a real-life example?
The school principal wants to build a basketball court in the playground. The court has a length of 90 feet and a width of 50 feet. What is the area that she will need to build the basketball court?
To find out, we need to calculate the area of the basketball court, which is a rectangle. Remember that we must multiply length times width: 90 times 50 equals 4500.
Great! The principal will need 4500 square feet to build the basketball court. We’re going to have so much fun!
If we had the patience to count them all, you would see that there are exactly 4500 square feet squares on this court’s surface.
Do you want to try an example? Find a meter stick and calculate the area of the next rectangular object you find. Remember that you only have to multiply the length by the width. See you soon!
[Music]
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.
[Music]
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This version maintains the educational content while removing any informal or unnecessary elements.
