Answer:
x = 9.2
Explanation:
6/cos(57) = 11.01647075 (hypotenuse)
6^2 + b^2 = 11.01647075^2
36 - 36 + b^2 = 121.3626278 - 36
√b^2 = √85.36262784
b = 9.239189783
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