2 years ago

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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