The length of a diagonal of a square is 20 inches. what is its perimeter in radical form

The perimeter of the square is

Data;

The perimeter of a square is given as 4 times the length of it's side length.

Assuming the diagonal and two of it's side forms a right-angle triangle, we can use Pythagoras theorem and solve for it's side length.

Given that

where y and z = side length and equal L

The side length of the square is 14.14 inches.

Using this information, let's find the perimeter of the square

But since we are asked to express our answer in radical form

From the calculations above, the perimeter of the square is

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so then what are you asking?

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