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Question Number 140915 by mathdanisur last updated on 14/May/21

Commented by mr W last updated on 14/May/21

$$questioniswrong!$$$$12+18+144+12=186>180!$$

Commented by mathdanisur last updated on 14/May/21

$$SorrydearSir,144°no,114°$$

Answered by mr W last updated on 14/May/21

$$\frac{CB}{x}=\frac{\sin (18+114)}{\sin 114}=\frac{\sin 48}{\sin 66}=\frac{\sin 48}{\cos 24}=2\sin 24$$$$\frac{y}{CB}=\frac{\sin (18+12)}{\sin (18+12+114+12)}=\frac{\sin 30}{\sin 24}$$$$\frac{y}{x}=\frac{2\sin 24\times \sin 30}{\sin 24}=1$$

Commented by mathdanisur last updated on 15/May/21

$$cooldearSirthakyou$$

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