MHT CET · Maths · Straight Lines
The circumradius of the triangle formed by the lines \(x y+2 x+2 y+4=0\) and \(x+y+2=0\) is
- A 2 units
- B 1 unit
- C \(\sqrt{2}\) units
- D \(\sqrt{3}\) units
Answer & Solution
Correct Answer
(C) \(\sqrt{2}\) units
Step-by-step Solution
Detailed explanation
The equation \(xy + 2x + 2y + 4 = 0\) can be factored as \((x+2)(y+2) = 0\). The lines forming the triangle are \(x = -2\), \(y = -2\), and \(x + y + 2 = 0\).
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