Category: Geometry

Question Number 65334 by Tawa1 last updated on 28/Jul/19 Answered by mr W last updated on 28/Jul/19 $$\mathrm{\angle }D=360-126-42\times 2=150°$$$$\frac{DC}{\sin x}=\frac{AC}{\sin 150}$$$$\Rightarrow DC=\frac{\sin x}{\sin 150}\times AC$$$$\frac{{AC}}{\mathrm{sin}\:\mathrm{126}}=\frac{{AB}}{\mathrm{sin}\:\left[\mathrm{42}−\left(\mathrm{30}−{x}\right)\right]}=\frac{{AB}}{\mathrm{sin}\:\left({x}+\mathrm{12}\right)} \…

Question Number 65314 by Tony Lin last updated on 28/Jul/19 Commented by Tony Lin last updated on 28/Jul/19 $$provethat\frac{1}{GM}-\frac{1}{HM}=\frac{1}{AM}-\frac{1}{BM}$$ Terms of Service Privacy…

Question Number 65281 by mr W last updated on 27/Jul/19 Commented by mr W last updated on 27/Jul/19 $$segmentofcirclewithsize2c\times d.(d⩽c)$$$$findtheinscribedellipsewith$$$$maximumarea.$$…

Question Number 65212 by ajfour last updated on 26/Jul/19 Commented by ajfour last updated on 26/Jul/19 $$ForPtobeunique,determine$$$$howa,b,carerelated.$$ Answered by ajfour last…

Question Number 65153 by Tawa1 last updated on 25/Jul/19 Commented by Tony Lin last updated on 25/Jul/19 Commented by Tawa1 last updated on 25/Jul/19 $$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir}…