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A circle C of radius 1 is inscribed in a...

A circle C of radius 1 is inscribed in an equilateral triangle PQR. The points of contact of C with the sides PQ, QR, RP are D, E, F, respectively. The line PQ is given by the equation `sqrt3 x+ y -6 = 0` and the point D is (3 sqrt3/2, 3/2). Further, it is given that the origin and the centre of C are on the same side of the line PQ. (1)The equation of circle C is (2)Points E and F are given by (3)Equation of the sides QR, RP are

A

`y=(2)/(sqrt3)x+1, y= - (2)/(sqrt3)x-1`

B

`y=(1)/(sqrt3)x ,y=0`

C

`y=(sqrt3)/(2)x+1, y= - (sqrt3)/(2)x-1`

D

`y=sqrt3x ,y=0`

Text Solution

Verified by Experts

The correct Answer is:
A
Equation of `QR, RP "are" y=(2)/(sqrt3)x+1and y=-(2)/(sqrt3) x-1`.
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