Respuesta :

Answer:

  • Let us use Pythagoras theorem
  • Hence
  • [tex] {4}^{2} + {b}^{2} = {10}^{2} [/tex]
  • [tex]16 + {b}^{2} = 100[/tex]
  • [tex] {b}^{2} = 84[/tex]
  • [tex]b = \sqrt{84} [/tex]
  • [tex]b = 9.16[/tex]
  • So Option A

A (9-0) Im guessing Just common sense too me