The perimeter if a square is 60 feet, then find the length of the diagonal. If necessary, round to the nearest tenth.
Square
Perimeter = s*4
s= side
Digonal^2 = s^2 + s^2
Diagonal = √(2s*^2) (I)
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Perimeter = s*4
60 = s*4
s = 60/ 4
s= 15
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Replacing in ( I )
Diagonal = √(2s*^2)
= √(2* ( (15)*^2) )
= √2* 225
= 15√2
= 21.21
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Answer
a). 21.2