📐 What is Pythagoras’ Theorem?

Pythagoras’ Theorem is a math rule used for right-angled triangles
(a triangle with one 90° corner).

🧠 The rule says:

(Side A)² + (Side B)² = (Longest Side)²

The longest side is called the hypotenuse.

🔺 Easy picture idea (imagine)

      |\
   b  | \  c  ← longest side
      |__\
        a

🏡 Real-life examples kids can understand

1️⃣ Ladder against a wall 🪜

• Wall height = 6 m
• Ground distance = 8 m
• How long is the ladder?

Use Pythagoras:

6² + 8² = c²
36 + 64 = 100
c = 10 m

👉 The ladder must be 10 meters long.

2️⃣ Walking across a playground 🛝

You can:

• Walk 20 m east
• Then 15 m north

Instead of walking both sides, you can go straight across.

20² + 15² = 400 + 225 = 625
√625 = 25 m

👉 Straight path = 25 meters.

3️⃣ TV screen size 📺

TV size is measured corner to corner.

If a TV is:

• 48 cm wide
• 36 cm tall

48² + 36² = 2304 + 1296 = 3600
√3600 = 60 cm

👉 TV size = 60 cm.

4️⃣ Baseball throw ⚾

A ball is thrown:

• 30 m forward
• 40 m to the side

How far did it really go?

30² + 40² = 900 + 1600 = 2500
√2500 = 50 m

👉 The ball traveled 50 meters.

🧠 When can we use Pythagoras?

✔ Only for right-angled triangles
✔ When you know two sides and want the third

🌟 Fun facts for kids

• Discovered over 2,000 years ago
• Used by builders, gamers, map makers, engineers
• Helps GPS and video games measure distance

🎯 Easy way to remember

Square the two short sides
Add them
Take the square root