Respuesta :

Step-by-step explanation:

Pythagorean theorem

Hypotenuse^2 = leg1^2 + leg2^2

  30^2 = 23^2 + leg2^2

   leg2^2 = 30^2 - 23^2

     leg2^2 = 371

     leg2 = ~ 19.3   units

Answer:

third side is 19.3

Step-by-step explanation:

a=23,c=30

C²= a²+b²

30²=23²+b²

900=529+b²

900-529=b²

   371  = b²

  19.26=b

   19.3  =b

so the third side is 19.3

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