Question Number 183174 by Mr.D.N. last updated on 22/Dec/22 $$\mathrm{In}\:\mathrm{the}\:\mathrm{given}\:\mathrm{figure}\:\mathrm{E}\:\mathrm{is}\:\mathrm{the}\:\mathrm{mid}\:\mathrm{point}\:\mathrm{of}\:\mathrm{AB}. \\ $$$$\:\mathrm{IF}\:\mathrm{the}\:\mathrm{area}\:\mathrm{of}\:\Delta\mathrm{EBF}\:\mathrm{is}\:\mathrm{8cm}^{\mathrm{2}} .\mathrm{find}\:\mathrm{the}\:\mathrm{area}\:\mathrm{of}\:\mathrm{the}\:\mathrm{parallelogram}\:\mathrm{ABCD}. \\ $$ Commented by mr W last updated on 22/Dec/22 $${answer}\:{is}\:\left({C}\right)\:{in}\:{the}\:{given}\:{figure}. \\…
Question Number 52061 by ajfour last updated on 02/Jan/19 Commented by ajfour last updated on 02/Jan/19 $${Find}\:{minimum}\:{of}\:\left({AP}+{PB}\right)\:{in} \\ $$$${terms}\:{of}\:\alpha,\:{a},\:{b}. \\ $$ Commented by MJS last…
Question Number 183124 by HeferH last updated on 21/Dec/22 Answered by a.lgnaoui last updated on 22/Dec/22 $$\mathrm{methode}\:\mathrm{1}\left(\mathrm{simple}\right) \\ $$$$\bigtriangleup\mathrm{ABC}\:\:\:\:\mathrm{30}+\mathrm{50}+\mathrm{x}+\theta=\mathrm{180} \\ $$$$\mathrm{x}+\theta=\mathrm{100} \\ $$$$\mathrm{AB}\parallel\mathrm{DE}\:\:\:\Rightarrow\measuredangle\mathrm{CDE}=\measuredangle\mathrm{CBA}=\mathrm{100} \\ $$$$\measuredangle\mathrm{EDF}=\measuredangle\mathrm{DAB}=\mathrm{20}\Rightarrow\measuredangle\mathrm{FDB}=\mathrm{60}…
Question Number 52052 by ajfour last updated on 02/Jan/19 Commented by ajfour last updated on 02/Jan/19 $${If}\:{a}\:{ray}\:{of}\:{light}\:{follows}\:{shown}\:{path} \\ $$$${getting}\:{reflected}\:{by}\:{inside}\:{of}\:{ellipse}, \\ $$$${find}\:{ellipse}\:{parameters}\:{a}\:{and}\:{b}\:{in} \\ $$$${terms}\:{of}\:\alpha\:\left({and}\:{unity}\right). \\ $$$${let}\:\alpha\:=\:\mathrm{45}°\:.…
Question Number 183107 by mr W last updated on 21/Dec/22 Commented by mr W last updated on 20/Dec/22 $${find}\:{the}\:{equation}\:{of}\:{the}\:{circle}\:{with} \\ $$$${radius}\:{r}\:{and}\:{center}\:{at}\:{C}\left({a},{b},{c}\right).\:{the} \\ $$$${normal}\:{of}\:{the}\:{plane}\:{in}\:{which}\:{the} \\ $$$${circle}\:{lies}\:{is}\:\overset{\rightarrow}…
Question Number 52016 by MJS last updated on 02/Jan/19 Commented by MJS last updated on 02/Jan/19 $$\mathrm{found}\:\mathrm{a}\:\mathrm{solution}\:\mathrm{to}\:\mathrm{Sir}\:\mathrm{Aifour}'\mathrm{s}\:\mathrm{formerly} \\ $$$$\mathrm{posted}\:\mathrm{question} \\ $$ Answered by MJS last…
Question Number 52012 by adilmalik78623@gmail.com last updated on 02/Jan/19 Commented by mr W last updated on 02/Jan/19 Commented by tanmay.chaudhury50@gmail.com last updated on 02/Jan/19 $${pointB}\left(\mathrm{3}{r}+\mathrm{2},\mathrm{4}{r}+\mathrm{3},\mathrm{5}{r}+\mathrm{4}\right)\:{be}\:{the}\:{foot}\:{of}\:{perpendicular}…
Question Number 183071 by HeferH last updated on 19/Dec/22 Answered by manolex last updated on 20/Dec/22 Commented by manolex last updated on 20/Dec/22 $${x}=\mathrm{15}. \\…
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Question Number 51973 by ajfour last updated on 01/Jan/19 Commented by ajfour last updated on 02/Jan/19 $${AB}\:=\:{PQ}\:=\:{c}\:\:,\:{BC}\:=\:{QR}\:=\:{a} \\ $$$${Find}\:{maximum}\:{area}\:{of}\:{hexagon} \\ $$$${DEFGHID}.\:\: \\ $$ Terms of…