kaylabae55 kaylabae55
  • 18-12-2019
  • Mathematics
contestada

Solve for a.

A= ?????

Solve for a A class=

Respuesta :

Stefanisaska
Stefanisaska Stefanisaska
  • 19-12-2019

Answer:a=3√7

Step-by-step explanation:

c=12

b=9

a=?

------------------------------

c²=a²+b²

a²=c²-b²

a=√c²-b²

a=√12²-9²

a=√144-81

a=√63

a=3√7

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