If alpha=8degrees, beta=121degrees and c=12 then what is Y?
A = 8o. B = 121o C = 51o. c/sinC = b/sinB. Multiply both sides by sinB: b = csinB/sinC = 12*sin121/sin51 =13.24. Area = 0.5*bc*sinA. Area = 0.5*13.24*12*sin8=11.05 Sq. Units Area = 0.5b*Y = 11.05 0.5*13.24*Y = 11.05 Y = 1.67.
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