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prisoha [69]
2 years ago
15

Find c.

Mathematics
1 answer:
Mazyrski [523]2 years ago
7 0

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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