Question

find a perimeter of a square whose diagonal is 20​

Answer 1

Answer:

40√2

Step-by-step explanation:

Let a be the side of the square.

Then according to the problem we have,

a√2 = 20

or

a = 10√2

Now perimeter of square is 4a = 4× 10√2

= 40√2

Hope this helps

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