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Home > A2C > Chapter 10 > Lesson 10.1.1 > Problem 10-25

10-25.
  1. Find the value of x. Homework Help ✎

    1. Belt carrying grain into barn.

Use the Law of Cosines.

x2 = (7)2 + (10)2 − 2(7)(10)cos(140°)

x ≈ 16.01'

Use the Law of Sines.

89.5°