1 | Click the Protractor button.![]() This button is located on the tool bar.
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2 | In the sonar view, click the point where you want to start the baseline. |
3 | Click the point where you want to end the baseline. The second line will appear.
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4 | Lock one end of the second line to the baseline.
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5 | Choose where you want the second line to end.
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