Answer:
tan(57°) = 12/x
x tan(57°) = 12
x = 12/tan(57°) = 7.793
x ≈ 7.8
Explanation:
using the tangent ratio in the right triangle
tan57° = = ( multiply both sides by x )
x × tan57° = 12 ( divide both sides by tan57° )
x = ≈ 7.8 ( to the nearest tenth )
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