Square side

Calculate length of side square ABCD with vertex A[0, 0] if diagonal BD lies on line p: -4x -5 =0.

Correct answer:

a =  1.77

Step-by-step explanation:

v(A,BD)=∣−4⋅0+⋅0−5∣(−4)2+02=1.25 u=∣AC∣=∣BD∣=2⋅v(A,BD)=2.5  u=2a a=u/2=1.77

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