SOLUTION: The perimeter of a square is (4x + 20) units the length of its diagonal is :

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Question 857992: The perimeter of a square is (4x + 20) units the length of its diagonal is :

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
perimeter = 4x+20
to get side divide by 4
4(x+5)/4
= (x+5)
diagonal ^2= side 1^2+side2^2 ( Pythagoras theorem)
d^2= (x+5)^2 +(x+5)^2
= 2(x+5)^2

d= sqrt%282%29%28x%2B5%29