Question

In the following figure a b and CD are the chord of two concentric circle if AC is equal to 2 cm find the length of BD

Answer 1

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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Answer 2

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