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anonymous
 5 years ago
A=77 deg, B=42 deg, c=9
how do i set this up in the laws of sines or cosines to find length of sides
i think i may have done this wrong on my previous problems.
anonymous
 5 years ago
A=77 deg, B=42 deg, c=9 how do i set this up in the laws of sines or cosines to find length of sides i think i may have done this wrong on my previous problems.

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radar
 5 years ago
Best ResponseYou've already chosen the best response.0I believe you can use the law of sines a/sinA=c/sinC Angle C = 1807742=71 degrees

radar
 5 years ago
Best ResponseYou've already chosen the best response.0a/sin 77 = 9/sin 71 degrees. That should do it. Solve for a, you will then have two sides all three angles, only have side b to figure out. Use law of sines again.
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