Adjacent Angles

Discover angles that are neighbors and share a common side!

What Are Adjacent Angles?

Adjacent angles are special angle friends that live next to each other!
They share a common vertex (corner point) and a common side, but don't overlap. Imagine two pizza slices sitting side by side on the same plate - that's how adjacent angles work!

Angle A Angle B Common Side

How to Spot Adjacent Angles

1️⃣ Look for two angles that share a common vertex (corner point)

2️⃣ Check that they share one common side

3️⃣ Make sure they don't overlap each other

Let's Practice with Examples!

Example 1: The Clock Angles

Look at a clock when it's 3:00. The hour and minute hands form a right angle (90°). Now imagine the time is 3:15 - the minute hand has moved to the 3, but the hour hand has moved a little toward the 4. The angles between 12-3 and 3-4 are adjacent angles!

Angle A Angle B

Example 2: The Book Corner

When you open a book, the two pages form adjacent angles. The spine of the book is their common side!

Left Page Angle Right Page Angle

Try opening a real book and notice how the angles change but always stay adjacent!

Parent Tips 🌟

  • Find angles around the house: Point out adjacent angles in door corners, picture frames, or folded paper to make learning practical.
  • Use straws or popsicle sticks: Let your child create adjacent angles by joining straws at a common point.
  • Play "Angle Detective": Give your child a protractor and have them measure adjacent angles they find in their environment.

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