the following figure AB and CD are the chords of two concentric circle. If AC=2cmFind the length of BD.
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BD = 2 cm if AC = 2 cm
Step-by-step explanation:
Lets Draw OM ⊥ AB / CD
AB is a chord hence
Perpendicular from center bisect it
=> AM = BM
CD is a chord hence
Perpendicular from center bisect it
=> CM = DM
AC = AM - CM
BD = BM - DM
AM = BM & CM = DM
=> BD = AM - CM
=> BD = AC
=> BD = 2 cm
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