Respuesta :

unicornetfairies

Answer:

square root of 5 squared minus 4 squared

Step-by-step explanation:

a^2 + b^2 = c^2

c^2 - b^2 = a^2

5^2 - 4^2 = a^2

25 - 16 = a^2

9          = a^2

√

√9=a

a=3

or

a=  √25-16

a= √9

a=3

Hope this helps!

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