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02-02-2021
Mathematics

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Find c.
Round to the nearest tenth.
20 ft
50°
15 ſt
c= [.? ]ft
Law of Cosines: c2 = 22 + b2 - 2ab cos C

Find c Round to the nearest tenth 20 ft 50 15 ſt c ft Law of Cosines c2 22 b2 2ab cos C class=

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Аноним Аноним

02-02-2021

Answer:

: c2 = a2 + b2 - 2ab cos C

c²=20²+15²-2×15×20×cos50

c²=400+225-600×0.64

c²=241

c=√241=15.5ft

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