Lilahgodess Lilahgodess

15-10-2021
Mathematics

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Respuesta :

shikhajethi83 shikhajethi83

15-10-2021

Answer:

a = 7.93

Step-by-step explanation:

a^2 + [9]^2 = 12^2

a^2+ 81= 144

-81 = -81

____________

a^2= 63

a= √63

a = 7.93

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