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Circles C1 and C2, of radii r and R respectively, touch each other as shown in figure. The line l, which is parallel to the line joining the centres of C1 and C2, is tangent to C1 at P and intersects C2 at A,B. If R2=2r2, then ∠AOB |
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Answer» Circles C1 and C2, of radii r and R respectively, touch each other as shown in figure. The line l, which is parallel to the line joining the centres of C1 and C2, is tangent to C1 at P and intersects C2 at A,B. If R2=2r2, then ∠AOB |
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