Question and Answers Forum

All Questions      Topic List

Coordinate Geometry Questions

Previous in All Question      Next in All Question      

Previous in Coordinate Geometry      Next in Coordinate Geometry      

Question Number 50625 by rahul 19 last updated on 18/Dec/18

2 opposite vertices of a square are   (5,4) and (1,−6). Find coordinates  of remaining two vertices ?

$$\mathrm{2}\:{opposite}\:{vertices}\:{of}\:{a}\:{square}\:{are}\: \\ $$$$\left(\mathrm{5},\mathrm{4}\right)\:{and}\:\left(\mathrm{1},−\mathrm{6}\right).\:{Find}\:{coordinates} \\ $$$${of}\:{remaining}\:{two}\:{vertices}\:? \\ $$

Commented by $@ty@m last updated on 18/Dec/18

Plot these points in graph paper.

$${Plot}\:{these}\:{points}\:{in}\:{graph}\:{paper}. \\ $$

Commented by rahul 19 last updated on 18/Dec/18

Sir, can you pl show your method..

$${Sir},\:{can}\:{you}\:{pl}\:{show}\:{your}\:{method}.. \\ $$

Answered by ajfour last updated on 18/Dec/18

center ≡(3,−1)  (1/2)×diagonal = (√(29))  slope m= (5/2)  slope of CD = −(2/5)  x_C  = 3+(√(29))(((−5)/(√(29)))) = −2  y_C  = −1+(√(29))((2/(√(29)))) = 1  x_D  = 3−(√(29))(((−5)/(29))) = 8  y_D  = −1−(√(29))((2/(√(29)))) = −3  C ≡(−2, 1)  D ≡(8, −3) .

$${center}\:\equiv\left(\mathrm{3},−\mathrm{1}\right) \\ $$$$\frac{\mathrm{1}}{\mathrm{2}}×{diagonal}\:=\:\sqrt{\mathrm{29}} \\ $$$${slope}\:{m}=\:\frac{\mathrm{5}}{\mathrm{2}} \\ $$$${slope}\:{of}\:{CD}\:=\:−\frac{\mathrm{2}}{\mathrm{5}} \\ $$$${x}_{{C}} \:=\:\mathrm{3}+\sqrt{\mathrm{29}}\left(\frac{−\mathrm{5}}{\sqrt{\mathrm{29}}}\right)\:=\:−\mathrm{2} \\ $$$${y}_{{C}} \:=\:−\mathrm{1}+\sqrt{\mathrm{29}}\left(\frac{\mathrm{2}}{\sqrt{\mathrm{29}}}\right)\:=\:\mathrm{1} \\ $$$${x}_{{D}} \:=\:\mathrm{3}−\sqrt{\mathrm{29}}\left(\frac{−\mathrm{5}}{\mathrm{29}}\right)\:=\:\mathrm{8} \\ $$$${y}_{{D}} \:=\:−\mathrm{1}−\sqrt{\mathrm{29}}\left(\frac{\mathrm{2}}{\sqrt{\mathrm{29}}}\right)\:=\:−\mathrm{3} \\ $$$${C}\:\equiv\left(−\mathrm{2},\:\mathrm{1}\right) \\ $$$${D}\:\equiv\left(\mathrm{8},\:−\mathrm{3}\right)\:. \\ $$

Commented by rahul 19 last updated on 18/Dec/18

thanks sir!��

Terms of Service

Privacy Policy

Contact: info@tinkutara.com