Category: Geometry

Question Number 104769 by mr W last updated on 23/Jul/20 Commented by mr W last updated on 23/Jul/20 $$findthecoordinatesoftheimage{B}^{\prime }$$$$ofthepointB(p,q)inthemirror$$$${y}={x}^{\mathrm{2}} \:{for}\:{an}\:{observer}\:{at}\:{the}\:{point} \…

Question Number 39104 by behi83417@gmail.com last updated on 02/Jul/18 Commented by behi83417@gmail.com last updated on 02/Jul/18 $$\stackrel{\wedge }{\mathit{B}}={100}^{\bullet },\mathit{A}\mathit{C}=10,\mathit{A}\mathit{D}=\mathit{D}\mathit{B}=\mathit{B}\mathit{E}=\mathit{E}\mathit{C}.$$$$\Rightarrow \measuredangle \mathit{D}\mathit{B}\mathit{E}=?,\mathit{D}\mathit{E}=?$$$$(\mathit{i}\mathit{s}\mathit{t}\mathit{h}\mathit{e}\mathit{r}\mathit{e}\mathit{a}\mathit{d}\mathit{d}\mathit{i}\mathit{t}\mathit{i}\mathit{o}\mathit{n}\mathit{a}\mathit{l}\mathit{c}\mathit{o}\mathit{n}\mathit{d}\mathit{i}\mathit{t}\mathit{i}\mathit{o}\mathit{n}\mathit{s}$$$$\left.\boldsymbol{{needed}}?\right)…

Question Number 170073 by mr W last updated on 15/May/22 Commented by mr W last updated on 15/May/22 $$Find\mid CD{\mid }_{min}=?,\mid CD{\mid }_{max}=?$$ Commented by…

Question Number 170010 by mr W last updated on 13/May/22 Commented by mr W last updated on 13/May/22 $$Givenatriangle\mathrm{\Delta }ABCwithsides$$$$a,b,c.$$$$Findtheareaoftheinscribedtriangle$$$${in}\:{terms}\:{of}\:{a},{b},{c},\theta.…

Question Number 104445 by ajfour last updated on 21/Jul/20 Commented by ajfour last updated on 21/Jul/20 $$Thecentralcirclehasradiusb.$$$$Thethreesmallestcircleshave$$$$radiia,wbiletheoutercircles$$$$haveradiic.Findcinterms$$$${of}\:{b}\:{and}\:{a}\:{when}\:{it}\:{is}\:{in}\:{contact}…