Category: Geometry

Question Number 79361 by TawaTawa last updated on 24/Jan/20 Commented by mr W last updated on 24/Jan/20 $$inthefigurepointOisnotdisplayed.$$$$weassumeOistheintersectionofAD$$$$andEC.$$ Answered…

Question Number 13738 by chux last updated on 22/May/17 $$\mathrm{P},\mathrm{Q},\mathrm{R},\mathrm{S}\mathrm{are}\mathrm{four}\mathrm{locations}\mathrm{on}\mathrm{the}$$$$\mathrm{same}\mathrm{horizontal}\mathrm{plane}.\mathrm{Q}\mathrm{is}\mathrm{on}\mathrm{a}$$$$\mathrm{bearing}\mathrm{of}041°\mathrm{from}\mathrm{P}\mathrm{and}\mathrm{the}$$$$\mathrm{distance}\mathrm{is}40\mathrm{km}.$$$$\mathrm{S}\mathrm{is}28\mathrm{km}\mathrm{from}\mathrm{R}\mathrm{on}\mathrm{a}\mathrm{bearing}074°,$$$$\mathrm{R}\mathrm{is}\mathrm{directly}\mathrm{due}\mathrm{north}\mathrm{of}\mathrm{P}\mathrm{and}$$$$\mathrm{the}\mathrm{distance}\mathrm{between}\mathrm{Q}\mathrm{and}\mathrm{R}\mathrm{is}$$$$\mathrm{38km}. \…

Question Number 79254 by mr W last updated on 23/Jan/20 Commented by mr W last updated on 23/Jan/20 $$Ifthesidelengthofthesquareis10,$$$$find$$$$1)theradiusofthesmallestcircle$$$$\left.\mathrm{2}\right)\:{the}\:{shaded}\:{area}…

Question Number 13548 by b.e.h.i.8.3.4.1.7@gmail.com last updated on 20/May/17 Commented by b.e.h.i.8.3.4.1.7@gmail.com last updated on 22/May/17 $$intriangleABC:$$$$1)\measuredangle ABD=\measuredangle DBE=\measuredangle EBC$$$$2)EH\mathrm{\perp }AB,DG\mathrm{\perp }BC$$$$\left.\mathrm{3}\right){S}_{{ABC}} =\mathrm{1} \…

Question Number 79026 by TawaTawa last updated on 22/Jan/20 Commented by mathmax by abdo last updated on 22/Jan/20 $$weconsidertherepere(D,D\overrightarrow{C},D\overrightarrow{A})\Rightarrow D(0,0),C(1,0)A(0,1)$$$$(1=20cm)\Rightarrow B(1,1)andF(\frac{1}{2},1)coordonnateofI?$$$${M}\left({x},{y}\right)\:\in\:\left({CF}\right)\:\Rightarrow{det}\left({C}\overset{\rightarrow}…