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Perimeter
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Definition:
Perimeter is the distance around the outside of a shape. -
Common Formulas
- Triangle
- Square
- Rectangular
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Explainations about symbols:
C: the circumference (perimeter)
a, b, c: the length of sides -
Questions about perimeter
- Type 1: Finding the perimeter
- Type 2: Finding the unknow sides
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Notes about the perimeter:
- Although polygons have the same perimeters, their lengths are different from each others.- For example:
Both rectangulars have the perimeter of 32m.
It means that: (a +b) x 2 = 32
==> a +b = 16
==> a= 1 = 2 = 3 = 4 = ...
And: b = 15 = 14 = 13 = ...
- For example:
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