If M(x, y) is equidistant from A(a + b, b – a) and B(a – b, a + b), then -Maths 9th

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Answer :

(b)10 + \(5\sqrt2\)Perimeter of ΔABC = AB + BC + CA= \(\sqrt{(0+4)^2+(-1-2)^2}\) + \(\sqrt{(3-0)^2+(3+1)^2}\) + \(\sqrt{(3-4)^2+(3-2)^2}\)= \(\sqrt{16+9}\) + \(\sqrt{9+16}\) +\(\sqrt{49+1}\)= \(\sqrt{25}\) + \(\sqrt{25}\) + \(\sqrt{50}\) = 5 + 5 + \(5\sqrt2\) = 10 + \(5\sqrt2\)

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