Homework Help: geometry

Posted by Anonymous on Wednesday, January 4, 2012 at 12:48am.

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 - Reiny, Wednesday, January 4, 2012 at 8:24am
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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