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In the circle above, chord bar(AB) is ex...


In the circle above, chord `bar(AB)` is extended to meet the tangent `bar(DE)` at D. If `bar(AB) = 12 cm` and `bar(DE)=8cm` , find the length of BD.

A

`4 sqrt6` cm

B

6 cm

C

4 cm

D

5 cm

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