Two circles of radii 7 cm and 3 cm are drawn with centres M and N respectively. Their transverse common tangents meet MN in P, then the point P divides MN (internally) in the ratio
A
7:3
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B
7:4
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C
7:5
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D
7:6
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Solution
The correct option is A7:3 Fact: Transverse common tangents to the two circle divides (internally) the line joining their centres in the ratio of their radii.