﻿ The normal 3x – 4y = 4 and 6x – 8y – 7 = 0 are tangents to the circle. Then its radius is: : Kaysons Education

# The Normal 3x – 4y = 4 And 6x – 8y – 7 = 0 Are Tangents To The Circle. Then Its Radius Is:

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## Question

### Solution

Correct option is

3/4

Equation of the given lines are

3x – 4y – 4 = 0                               …(1)

Slope of line (1) is = 3/4

Slope of line (2) is = 3/4

So lines (1) & (2) are parallel

âˆµ the diameter of the circle is the perpendicular distance b, t the parallel lines. If p1 & p2 are the perpendicular distance from (0, 0) on line (1) & (2) then

Length of the diameter

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