1is the ans (-a(2√2-1),a(2√2-1))
If A(a,a),B(-a,-a) are the vertices of an equilateral triangle then its third vertex is??
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8 Answers
62this is not a very tough question..
Try to see that the perpendicular bisector of (a,a) and (-a, -a) will contain the 3rd vertex....
so what will be the perpendicular bisector be? x+y=0.
now take the point as (k, -k)
the distance between (a,a) and (k, -k) = distance between (a,a) and (-a, -a)
so (a-k)2+(a+k)2 = 8a2
so 2k2=6a2
so k=±√3a
62arrey last me typo hai k = ±√3a
fixing that.. by mistake i put k= ±√3
1ok...but i gave my method and solution...can u plz check how my method is whong...plz......
1anuj they askd for a equilateral triangle............u took an isosceles right triangle.........thts d mistake i guess
1no, i equated all the sides..the third(capacitor symbol...:P) line is not visible, but i had drawn it...
