Question

How do you know each of the sides of the shape are the same length?

Answer 1

Answer:

If your shape is a regular polygon (such as a square in the example above) then it is only necessary to measure one side as, by definition, the other sides of a regular polygon are the same length. It is common to use tick marks to show that all sides are an equal length.

Step-by-step explanation:

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Answer 2

Answer:

they usually have double line on top of the lines of the shapes. for example square they have all the same lenght so they have double line signs on top of them

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