in the figure, ABC is an equilateral triangle. write the coordinates of A.
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Answer :- (4√3 , 0)
AB = 4 - (-8)
= 8 units
it is an equilateral triangle ,
AB = BC = AC
AB = 8 units ,
Consider triangle ABO ,
OB : OA : AB = 1 : √3 : 2
OB = 4 units
OA = √3 × 4
= 4√3 units
A = (4√3 , 0)
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