Question
Question: The length of the chord of the circle x<sup>2</sup> + y<sup>2</sup> = 25, along the line 3x + 4y – 1...
The length of the chord of the circle x2 + y2 = 25, along the line 3x + 4y – 15 = 0 is –
A
6
B
8
C
9
D
None of these
Answer
8
Explanation
Solution
Let length CM = p
p = 5∣0+0−15∣ = 3
\ using pythagoran Theorem
AM = 4 Ž AB = 8