Category: Geometry

Question Number 188268 by normans last updated on 27/Feb/23 Commented by normans last updated on 27/Feb/23 $$\mathit{f}\mathit{i}\mathit{n}\mathit{d}\mathit{x}=???$$ Commented by universe last updated on…

Question Number 57186 by Tawa1 last updated on 31/Mar/19 Commented by kaivan.ahmadi last updated on 31/Mar/19 $$$$\left|\begin{array}{c}111\\ abc\\ a^2{b}^2{c}^2\end{array}\right|$$\underset{−{a}^{\mathrm{2}} {R}_{\mathrm{1}} +{R}_{\mathrm{3}} } {\overset{−{aR}_{\mathrm{1}} +{R}_{\mathrm{2}}…

Question Number 188208 by Rupesh123 last updated on 26/Feb/23 Answered by a.lgnaoui last updated on 26/Feb/23 $$\measuredangle ADB=150\Rightarrow \measuredangle BCD=30\measuredangle C=120$$$$△ABC\frac{\sin 20}{8}=\frac{\sin 60}{x+CD}\left(1\right)$$$$CD=\frac{8\sin 60}{\sin 20}-x\left(2\right)$$$$△BCD\frac{\sin 50}{CD}=\frac{\sin 30}{8}\left(3\right)$$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:{CD}=\frac{\:\mathrm{8sin}\:\mathrm{50}}{\mathrm{sin}\:\mathrm{30}}\:\:\:\:\:\left(\mathrm{4}\right)\:\:\:\:\:\:\:…

Question Number 188163 by normans last updated on 26/Feb/23 Commented by mr W last updated on 26/Feb/23 $$isitreallyasquare?$$ Commented by normans last updated…

Question Number 188155 by normans last updated on 26/Feb/23 Answered by HeferH last updated on 26/Feb/23 Commented by HeferH last updated on 26/Feb/23 $$\:\frac{{a}}{{b}}\:=\:\frac{\mathrm{180}}{{k}\:+\:\mathrm{64}} \…