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The length of the diagonal of a square with side length 1 is () A. Integer B. fraction C. rational number D. irrational number
The length of the diagonal of a square with side length 1 = 2, so D
If the diagonal length of the square is 10cm, what is the side length of the square?
The square of the diagonal of a square is twice the square of the side
So 10 ^ 2 = 2 * a ^ 2, a = 5 √ 2 cm
Known square diagonal length 25 cm, seek side length, thank you
The relationship between the side length of a square and the diagonal is 1: root 2
Because the diagonal is 25cm long
So the side length is 25 / root 2
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