Two circles of radii 3cm and 8cm have their centres 13cm apart. Calculate the length ofthe direct common tangent.

      

Two circles of radii 3cm and 8cm have their centres 13cm apart. Calculate the length of the direct common tangent.

  

Answers

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L2 = 132 – 52
= 169 – 25
L = 144
= 12

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Kavungya answered the question on September 18, 2019 at 13:58

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