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Prove that (2a, 6a) and(2a+√3+5a) are the vertices of equilateral triangle. |
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Answer» ER
PROOF :- AB= (2a−2a) 2 +(6a−4a) 2
=2a AC= (2a−(2a+ 3 a)) 2 +(4a−5a) 2
= 3a 2 +a 2
=2a BC= (2a+ 3 a−2a) 2 +(6a−5a) 2
=2a
AB=BC=AC=2a All sides are equal. Hence, It is an EQUILATERAL triangle. |
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