Question

in ∆ABC,angleB=90,angle A=x, angle C=2x and AB=12cm.find BC ​

Answer 1

Answer:- 4_/3 cm

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Answer 2

Step-by-step explanation:

In triangle ABC

x+2x+90=180. (angle sum property)

x=30

Cos2x=BC/AC=cos60

AC=2BC

Sin2x=12/AC=sin60

AC=8√3

BC=4√3

hope it helps u