Q.8) In ΔABC, angle B = 90°, angle A = 60°, angle C = 30°, AC = 17 then AB is.... *
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Answer:
AB = 8.5 cm
Step-by-step explanation:
we can use trigonometry to solve the problem
sin C = AB/AC [ hyp/opp ]
sin 30° = AB/AC
1/2 = AB/17 [ sin 30° = 1/2 ]
on cross-multiplication we get,
2AB = 17
therefore AB = 17/2 => 8.5 cm
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