Respuesta :

sqdancefan
The Pythagorean theorem tells you the square of the hypotenuse is equal to the sum of the squares of the sides.
  BC² = AB² + AC²
  BC² = 4² +4² = 32
  BC = √32 = 4√2
  BC = 4*1.41 = 5.64

The length of segment BC is 5.64 m.