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Home > INT3 > Chapter 10 > Lesson 10.1.1 > Problem 10-12

10-12.

What is the value of in each diagram below?

  1. Triangle labeled as follows: left side, 17, bottom side, x, bottom left angle 50 degrees, bottom right angle, 20 degrees.

Recall the Triangle Angle Sum Theorem and solve for the missing angle measurement.

Use the Law of Sines to solve for .

  1. Triangle labeled as follows: right side, 10, bottom side, x, top angle 55 degrees, bottom right angle, 36 degrees.

    See hints from part (a).

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