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📏 What is Perimeter?
📏 What is Perimeter?
Perimeter is the total distance around the edge of a two-dimensional shape.
Think of it like walking along the border of a shape how far would you walk to go all the way around?
To find the perimeter, you add up the lengths of all the sides. For different shapes, the way you calculate perimeter depends on how many sides the shape has and whether the sides are all the same or different.
Example:
Example:
All four sides of a square are equal. So, you can multiply one side by 4.
Formula:
Perimeter = 4 × side
Example:
If one side of the square is 4 meters:
Perimeter = 4 × 4 = 16 meters
Example:
Example:
A triangle has 3 sides. To find the perimeter, just add all three sides together.
Formula:
Perimeter = side₁ + side₂ + side₃
Example:
A triangle has sides of 5 cm, 6 cm, and 7 cm.
Perimeter = 5 + 6 + 7 = 18 cm
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