Let's measure the perimeter!
Hello Geogenius!
In today’s post, we’re going to learn something really useful in geometry: the perimeter! We’ll learn what it is, how to find it, and even how to do some fun activities with it. Ready to get started? Let’s go!
What Is Perimeter?
The perimeter is the total distance around a shape. Imagine walking all the way around a garden: you’re measuring the perimeter!
You can find the perimeter by adding up the lengths of all the sides of a shape.
The perimeter is the total distance around a shape. Imagine walking all the way around a garden: you’re measuring the perimeter!
You can find the perimeter by adding up the lengths of all the sides of a shape.
How to Find the Perimeter
Let’s look at some shapes and how to find their perimeter:
Square: All 4 sides are the same.
Perimeter = side + side + side + side
Or just Perimeter = 4 × side
Let’s look at some shapes and how to find their perimeter:
Square: All 4 sides are the same.
Perimeter = side + side + side + side
Or just Perimeter = 4 × side
Rectangle: Two long sides and two short sides.
Perimeter = 2 × (length + width)
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Triangle: Just add up all 3 sides!
Perimeter = side1 + side2 + side3
Perimeter = side1 + side2 + side3
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Any Polygon: Add all the sides together, no matter how many there are!
Let's Try It Together! Now it's time for you to try to find the perimeter of these figures.
Fun Perimeter Activities
Now it’s time for some hands-on fun! Here are some cool ways to play with perimeter:
Now it’s time for some hands-on fun! Here are some cool ways to play with perimeter:
🏡 Design Your Dream Yard
Draw a shape for your dream garden or backyard. Add decorations like fences, trees, and paths. Then measure and calculate the perimeter of the whole space!
Draw a shape for your dream garden or backyard. Add decorations like fences, trees, and paths. Then measure and calculate the perimeter of the whole space!
📏 Perimeter Scavenger Hunt
Use a ruler and walk around your home or classroom. Measure the perimeter of real things like books, tables, or rugs. Write down your results!
🎨 Create a Perimeter Poster
Draw a big rectangle or other shape. Inside it, write the formula you used and decorate it with colors and stickers. Show off your math skills with art!
A Cool Tip:
Always write down the units! If you're measuring in centimeters include them in your answer. For example:
Perimeter = 24 cm
Always write down the units! If you're measuring in centimeters include them in your answer. For example:
Perimeter = 24 cm
Let’s Learn More:
Want to go even deeper? Look up fun videos that show how perimeter is used in real life, like building fences, designing rooms, or planning a race track!
Want to go even deeper? Look up fun videos that show how perimeter is used in real life, like building fences, designing rooms, or planning a race track!
Thanks for joining today’s geometry adventure. Keep exploring, measuring, and having fun with shapes! 😊
See you next time!
References:
PianetaBambini.it. (s.f.). Esercizi perimetro scuola primaria. Recuperado el 21 de abril de 2025, de https://pianetabambini.it/esercizi-perimetro-scuola-primaria/
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