Find the value of x and y? a) x=15 y=12 b) x=14 y=11 c) x=14 y=12 d) x=15 y=11.

answer: the angel abc is 30°,and the abc is a triangle where the angel bac is 90°

so ac is the half of 24=12ft,and from the pythagorean theorem we find ba

ba=√bc^2-ac^2=√576-144=√432=12√3ft

so bac is 12+12√3=12(1+√3)ft

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