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7-56.

What angle in the first quadrant could you reference to help you find the sine and cosine of each of the following angles? 7-56 HW eTool (Desmos). Homework Help ✎

  1. 330°

  2. 120°

  3. 113°

  4. 203°

30°

60°

Use the eTool below to find the needed reference angles.
Click the link to the right for full version: CCA2 7-56 HW eTool