Category: Geometry

Question Number 138661 by mr W last updated on 16/Apr/21 Commented by mr W last updated on 16/Apr/21 $$proofforQ138519$$ Commented by mr W…

Question Number 7544 by Tawakalitu. last updated on 03/Sep/16 Commented by sou1618 last updated on 03/Sep/16 $$x=OA$$$$OB=\sqrt{x^2+144}$$$$\mathrm{\Delta }ABO=\frac{1}{2}12x$$$$\Delta{AOB}=\frac{\mathrm{1}}{\mathrm{2}}\mathrm{3}\left(\mathrm{12}+{x}+\sqrt{{x}^{\mathrm{2}} +\mathrm{144}}\right)…

Question Number 138519 by mr W last updated on 14/Apr/21 Commented by mr W last updated on 14/Apr/21 $$fromanarbitrarytriangleABC$$$$pointsP,Q,Rareconstructedas$$$$shownwith\alpha +\beta +\gamma =360°.$$$${prove}\:{that}\:{the}\:{interior}\:{angles}\:{of}…

Question Number 72930 by TawaTawa last updated on 05/Nov/19 Answered by ajfour last updated on 05/Nov/19 Commented by ajfour last updated on 05/Nov/19 $${R}\mathrm{sin}\:\alpha={R}−\mathrm{2}{r} \…

Question Number 138401 by Bekzod Jumayev last updated on 13/Apr/21 Commented by Bekzod Jumayev last updated on 13/Apr/21 $$Help?$$ Commented by Bekzod Jumayev…