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Question Number 186697 by Mingma last updated on 08/Feb/23

Answered by mr W last updated on 08/Feb/23

$$DB=\frac{8\sin 80°}{\sin 30°}$$$$x=\frac{DB\times \sin 10°}{\sin 20°}$$$$=\frac{8\sin 80°\sin 10°}{\sin 30°\sin 20°}$$$$=\frac{8\cos 10°\sin 10°}{\sin 30°\sin 20°}$$$$=\frac{4\sin 20°}{\sin 30°\sin 20°}$$$$=\frac{4}{\sin 30°}$$$$=8$$

Answered by HeferH last updated on 08/Feb/23

Commented by HeferH last updated on 08/Feb/23

$$x=8$$

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