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The equation of the base of ann equilate...

The equation of the base of ann equilateral triangle is `3x-4y+15=0` and one vertex is (1,2). The length of the side is

A

`4//sqrt(3)`

B

`1`

C

`sqrt(3)//4`

D

`2//sqrt(3)`

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The correct Answer is:
A
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