Welcome to Learning More! Today, we’re going to discover something cool in math called the perimeter. Let’s dive in and find out what it is!
Perimeter is the distance all the way around a shape. Imagine you have a garden, and you want to put a fence around it. The length of the fence is the perimeter of your garden. To find the perimeter, you just add up the lengths of all the sides of the shape.
Let’s look at some examples to understand better:
Different shapes have different ways to calculate the perimeter. Here are some common ones:
Now you know how to find the perimeter of different shapes! It’s like measuring the border of a picture frame or the edge of a playground. Keep practicing, and you’ll become a perimeter pro in no time!
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Perimeter Hunt: Go on a perimeter hunt around your home or classroom! Find different objects like books, tables, or picture frames. Use a ruler or measuring tape to measure each side of the object and calculate the perimeter by adding all the sides together. Write down your findings and share them with your classmates or family.
Build Your Own Shape: Use craft sticks, straws, or string to create different shapes like triangles, squares, and rectangles. Measure each side and calculate the perimeter of each shape. Try to create a shape with the largest perimeter using the same number of sticks or straws. Discuss with a friend or family member why some shapes have larger perimeters than others.
Perimeter Story Time: Imagine you are designing a new playground. Draw a simple map of your playground on paper, including different areas like a sandbox, swing set, and slide. Calculate the perimeter of each area to know how much fencing you would need. Share your playground design and perimeter calculations with your class or family, explaining why knowing the perimeter is important for your design.
Sure! Here’s a sanitized version of the YouTube transcript:
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[Music] Welcome to Learning More! Today, we are exploring the question: What is perimeter?
Perimeter is the distance around a two-dimensional (2D) shape. If you imagine a garden, the perimeter is the fencing that goes around the garden. To calculate the perimeter, you simply add up the lengths of all the sides.
Here are some examples for you:
– For a rectangle, the perimeter is calculated as 7 + 3 + 7 + 3, which equals 20.
– For a regular pentagon, the perimeter is 3 + 3 + 3 + 3 + 3, which is the same as 5 times 3, equaling 15.
– The perimeter of a circle is called the circumference. To calculate the circumference, you use the formula 2π times the radius.
Different shapes have different formulas to help you calculate the perimeter. Here are some common shapes and their formulas:
– For a triangle, the perimeter is simply a + b + c.
– For a square, the perimeter is 4 times a, since all the sides are equal in length (where a is the length of a side).
– To calculate the perimeter of a rectangle, you need to know the width and the height. The formula is 2 times the width plus the height.
– To calculate the perimeter of a quadrilateral (any four-sided shape), the formula is a + b + c + d.
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