Tunnel - quadrilateral
How long will the tunnel AB be, distances AD=35 m, DC=120 m, CB=85 m, and angles ADC=105 degrees and BCD=71 degrees. ABCD is a quadrilateral.
Correct answer:
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You need to know the following knowledge to solve this word math problem:
geometryarithmeticplanimetricsgoniometry and trigonometryUnits of physical quantitiesGrade of the word problem
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