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geometry

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find the length of ab & bc of a triangle abc having given the length of ac = 28inch, angle abc = 90, angle bac =30,, angle acb = 60

  • geometry - ,

    you have a standard 30-60-90 right-angled triangle whose sides are in the ratio of 1:√3:2

    so AB/28 = √3/2 ---> AB = 14√3
    BC/28 = 1/2 -----> BC = 14

    (The sides of the standard triangle were multiplied by 14)

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