Segitiga ABCABCABC memiliki koordinat A(−3,−3),B(5,−3),C(−3,3)A\left(-3,-3\right),B\left(5,-3\right),C\left(-3,3\right)A(−3,−3),B(5,−3),C(−3,3). Maka nilai cosB=....\cos B=....cosB=....
810\frac{8}{10}108
57\frac{5}{7}75
35\frac{3}{5}53
58\frac{5}{8}85
610\frac{6}{10}106