SOLUTION: If the diagonal of a square is 9 units long, how long is each side?

SOLUTION: If the diagonal of a square is 9 units long, how long is each side?

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Question 249789: If the diagonal of a square is 9 units long, how long is each side?
Answer by mathhub(11) (Show Source): You can put this solution on YOUR website!
The diagonal (d) of a square is given by
d = sqrt(2a*a)
where a is the side of the square.
Squaring both sides we get

=>
=>
=>
=>
=>
=> a = 6.3639
Therefore the side of the square is 6.3639 units.
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