Respuesta :

49+b^2= 196
B^2= 147
= 12.12
The answer is 12.12. Hope this helps !
tonb

Answer:

√147 = 7√3 ≈ 12.12

Step-by-step explanation:

Pythagoras says x²+7²=14², so x = √(14²-7²) = √147 = 7√3 ≈ 12.12

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