Answer:
4 appels if you dont get any but if you get one as well 3
Step-by-step explanation:
No se need puntos idk sorry jajjajaydyajjshdhdgeyyetegegdvdbds
Cos (B) = (a^2 + c^2 -b^2) / (2 * a * c)
cos (B) = (11^2 +17^2 -12^2) / (2 * 11 * 17)
cos (B) = (121 + 289 -144) / (374)
cos (B) = 266 / 374
cos (B) =
<span>
<span>
<span>
0.7112299465
Angle B = </span></span></span>44.665 degrees