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CBSE Class 12-science Answered

Locus of centre of circle.
Asked by | 02 Jun, 2008, 12:24: PM
Expert Answer

let the center of the circle be (h,k)

assuming rod of length a slides along y-axis and other slides along x-axis.

then for the rod of length a -

length of perpendicular from center = h

radius of circle = r

and length of chord = a

then  (a/2)2 + h2 = r2

similarly for other rod

(b/2)2 + k2 = r2

so the locus of the center is (a/2)2 + x2= (b/2)2 + y2

Answered by | 14 Dec, 2008, 12:55: AM
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