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3-21.

Find the length of the side labeled in each triangle below. Homework Help ✎

  1. triangle

    Look at the angle measures. Does this type of triangle look familiar?

    If you cannot solve it that way, refer to problem 1-61 or the Math Notes box in Lesson 1.2.1.

  1. triangle

  1. triangle

    Look at the values given. Is it necessary to use the trigonometric identities, or is there an easier way?

  1. triangle

    Use the Pythagorean Theorem.