π¦ The Amazing Square! π¦
Let's discover the most special shape!
π What is a Square? π
A Square is Super Special!
A square is a shape with:
- β 4 sides that are ALL the same length
- β 4 corners (we call them vertices)
- β 4 right angles (like the corner of a book!)
π― Remember: A square is the MOST regular 4-sided shape!
Interactive visualization β available in the full lesson
β Why is a Square SO Special? β
π· It's a Rectangle!
Because it has 4 right angles (90Β° corners)
πΆ It's a Rhombus!
Because it has 4 equal sides
π Best of Both!
A square combines the best of rectangle AND rhombus!
π Parts of a Square π
Interactive visualization β available in the full lesson
π A Square Has:
| 4 Sides | AB, BC, CD, DA |
| 4 Vertices | A, B, C, D (the corners!) |
| 4 Right Angles | Each is exactly 90Β° |
π·οΈ Naming a Square:
We name it by its corners: Square ABCD
The letters go in order around the shape!
π Main Property: ALL Sides Are Equal! π
Interactive visualization β available in the full lesson
π― The Magic Rule:
AB = BC = CD = DA
This means:
- If one side is 5 cm
- Then ALL sides are 5 cm!
π‘ Super Easy!
You only need to know ONE side to know ALL sides!
π All Angles Are Right Angles (90Β°) π
What is a Right Angle?
A right angle is exactly 90 degrees.
It looks like the corner of:
- π A book
- π A piece of paper
- πͺ A door
- πΊ A TV screen
π How to Check: Use the corner of a paper to see if it matches!
Interactive visualization β available in the full lesson
π Perimeter of a Square π
Interactive visualization β available in the full lesson