Ab and cd are two common tangents to circles which touch each other at
c. If d lies on ab such that cd = 4cm , then ab =
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43
Answer
CD = 4 cm
CD = AD = BD = 4 cm [ Tangents from a single exterior point, D ]
AB = AD + BD = 4 + 4
= 8 cm
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1
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the answer is 8 cm
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