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Akim Khalilov · Answer 1 · 2019-04-01T14:11:04+0000

The cosine of an acute angle in a right triangle is the ratio of the length of the adjacent side to the length of the hypotenuse.

cos(22°) = x/11 ⇒ x = 11×cos(22°)

x = 11×cos(22°) = 11×0.9272 ≈ 10.2 units

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