Description: Geometric measurement: recognize perimeter as an attribute of plane figures and distinguish between linear and area measures.
Perimeter
Definition
- Perimeter is like a fence around a shape. It measures how long the outline of a shape is.
Formula
- Rectangle - 2 x (Length + Breadth).
- Square - 4 x Side A.
- Triangle - Side A + Side B + Side C.
Area vs Perimeter
- Perimeter is about the outside length, while Area is about the inside space.
- Example: Perimeter measures the distance around a park, but area measures the area where you can play.
Real Life Examples
- How much fencing is required around a garden?
- How much ribbon to go around a gift?
- Measuring room dimensions.
public Lumos Mind Maps (376 Mind maps)
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