swimmer6 swimmer6
  • 13-03-2021
  • Mathematics
contestada

find the value of x



find the value of x class=

Respuesta :

verygoodname123 verygoodname123
  • 13-03-2021

Answer:

4√5

Step-by-step explanation:

Use Pythagorean theorem

a^2=21^2-19^2

a^2=441-19^2

a^2=441-361

a^2=80

a= √80

simplify

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