Respuesta :

Answer:

Step-by-step explanation:

[tex]AB=\sqrt{4^2+7^2} =\sqrt{16+49} =\sqrt{65} \approx~8.1\\tan B=\frac{4}{7}\\B=tan ^{-1} (\frac{4}{7} )\approx~29.7^ \circ \\A=90-29.7=60.3 ^\circ[/tex]

thierrycadeau239
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