please help giving brainliest im begging lol ⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️⚠️

Answer:
see below
Step-by-step explanation:
I would use the sine function for the info given
in a right triangle sine = opp leg / hypotenuse
so sin 57 = 10.8/x
then x = 10.8 / sin 57 = 12.87