If be a point on the parabola and is the foot perpendicular drawn from on the directrix of the parabola, then length of each side of an equilateral triangle , where is focus of the parabola is |
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a) |
2 |
b) |
4 |
c) |
6 |
d) |
8 |

If be a point on the parabola and is the foot perpendicular drawn from on the directrix of the parabola, then length of each side of an equilateral triangle , where is focus of the parabola is |
|||||||

a) |
2 |
b) |
4 |
c) |
6 |
d) |
8 |

1 Answer - 5876 Votes

3537

**(c)**

Equation of directrix is

i.e,

Let coordinates of be

Therefore, coordinate of are

length of side =6