Surveying, as Practiced by Civil Engineers and Surveyors ...: Intended as a Handbook for Field and Office Use, Also as a Textbook for Students |
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Page 86
... equal to twice as many right angles as the figure has sides , less four right angles . " In the case of Fig . 73 , as the figure is four - sided the sum of the interior angles is equal to 2 x 4 × 90 ° - 4 × 90 ° = 360 ° . If then the ...
... equal to twice as many right angles as the figure has sides , less four right angles . " In the case of Fig . 73 , as the figure is four - sided the sum of the interior angles is equal to 2 x 4 × 90 ° - 4 × 90 ° = 360 ° . If then the ...
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