stella013108
16.12.2019 •
Mathematics
The image below is a triangle drawn inside a circle with center o: which of the following expressions shown in the area, in square inches, of the circle? 3.14 •2 4 3.14 •5 2. 3.14 •5 3.14• 2 2
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Ответ:
side AC / sin (71) = side BC / sin (40)
25 / 0.94552 = side BC / 0.64279
side BC = 16.9956743379
side BC = 17 m (rounded)
Source:
http://www.1728.org/trigtut2.htm