1.

In the given graph, \[\Delta ABC\] and \[\Delta ABD\] are equilateral triangles. Find the respective coordinates of points \[C\] and\[D\].

A. \[\left( 0,\,\,a\sqrt{3} \right)\left( 0,\,\,a\sqrt{3} \right)\]       
B. \[\left( 0,\,\,-a\sqrt{3} \right)\left( 0,\,\,a\sqrt{3} \right)\]      
C. \[\left( 0,\,\,a\sqrt{3} \right)\left( 0,\,\,-a\sqrt{3} \right)\]      
D. \[\left( a\sqrt{3},\,\,0 \right)\left( -a\sqrt{3},\,\,0 \right)\]      
Answer» D. \[\left( a\sqrt{3},\,\,0 \right)\left( -a\sqrt{3},\,\,0 \right)\]      


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