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In a triangle ABC, angleBCA = 90^(@) and...

In a triangle ABC, `angleBCA = 90^(@)` and CD is perpendicular to AB. If AD = 4 cm and BD = 9 cm, then the value of DC will be

A

`sqrt(18) cm`

B

`sqrt(20) cm`

C

`sqrt(65) cm`

D

6 cm

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