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yKpoI14uk [10]
4 years ago
12

Use the Law of Sines to find the length of DE to the nearest tenth of an inch.

Mathematics
1 answer:
Alex4 years ago
3 0
Angle E = 180 -45 -63 = 72 degrees
Using the Law of Sines
FD / sine (E) = ED / sine (63)
3.8 / 0.95106 = ED / 0.89101
side DE = 3.8 * .89101 / .95106
side DE = <span> <span> <span> 3.5600677139 </span> </span> </span>

Source:
http://www.1728.org/trigtut2.htm


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