Two circles are of radii 7 cm and 2 cm their centers being 13 cm apart. then the length of direct common tangent to the circles between the points of contact is
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see in figure , there are two right angled triangle.
∆AOP and ∆ABO
AO=√218
AB=√218-4
AB=√214
∆AOP and ∆ABO
AO=√218
AB=√218-4
AB=√214
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Answered by
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See the attach file for ur ans
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