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Category: Coordinate Geometry

Question-137412

Question Number 137412 by oustmuchiya@gmail.com last updated on 02/Apr/21 Answered by herbert last updated on 02/Apr/21 $${gradient}\:{of}\:{l}_{\mathrm{1}} \:=\:\frac{\mathrm{2}+\mathrm{4}}{\mathrm{5}+\mathrm{1}}\:=\frac{\mathrm{6}}{\mathrm{6}}=\mathrm{1} \\ $$$${but}\:{grad}\:{of}\:{l}_{\mathrm{1}} ×{l}_{\mathrm{2}} =−\mathrm{1} \\ $$$${grad}\:{of}\:{l}_{\mathrm{2}} =−\mathrm{1}…

Find-the-equation-of-the-circle-circumscribing-the-triangle-form-by-lines-3x-y-5-0-x-y-1-0-and-2x-y-4-0-

Question Number 6192 by sanusihammed last updated on 17/Jun/16 $${Find}\:{the}\:{equation}\:{of}\:{the}\:{circle}\:{circumscribing}\:{the}\:{triangle}\:{form}\:{by}\: \\ $$$${lines}\:\:\mathrm{3}{x}\:+\:{y}\:−\:\mathrm{5}\:=\:\mathrm{0},\:{x}\:+\:{y}\:+\:\mathrm{1}\:=\:\mathrm{0},\:{and}\:\mathrm{2}{x}\:+\:{y}\:−\:\mathrm{4}\:=\:\mathrm{0} \\ $$ Answered by Rasheed Soomro last updated on 18/Jun/16 $$\mathrm{3}{x}\:+\:{y}\:−\:\mathrm{5}\:=\:\mathrm{0}……\left({i}\right) \\ $$$${x}\:+\:{y}\:+\:\mathrm{1}\:=\:\mathrm{0}……..\left({ii}\right)…

Question-71170

Question Number 71170 by mr W last updated on 12/Oct/19 Commented by mr W last updated on 12/Oct/19 $${Question}\:#\mathrm{49583}\:\left({reposted}\right) \\ $$$${in}\:{a}\:{paraboloid}\:{cup},\:{which}\:{is}\:{absolutely} \\ $$$${smooth},\:{a}\:{stick}\:{remains}\:{in}\:{equilibrium} \\ $$$${as}\:{shown}.\:{find}\:{the}\:{maximum}\:{length}…

the-sides-of-a-triangle-are-5-7-10-cm-1-find-the-largest-equilateral-triangle-which-circumscribes-the-given-triangle-2-find-the-smallest-equilateral-triangle-which-inscribes-the-given-triangle-

Question Number 136293 by mr W last updated on 20/Mar/21 $${the}\:{sides}\:{of}\:{a}\:{triangle}\:{are}\:\mathrm{5},\mathrm{7},\mathrm{10}\:{cm}. \\ $$$$\left.\mathrm{1}\right)\:{find}\:{the}\:{largest}\:{equilateral}\:{triangle} \\ $$$${which}\:{circumscribes}\:{the}\:{given}\:{triangle}. \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{smallest}\:{equilateral}\:{triangle} \\ $$$${which}\:{inscribes}\:{the}\:{given}\:{triangle}. \\ $$ Commented by mr W…