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Let ABC be a right angled triangle with ...

Let ABC be a right angled triangle with BC = 5 cm and AC = 12 cm. Let D be a point on the hypotenuse AB such that `angleBCD = 30^(@)` . What is length of CD ?

A

`60/13 cm`

B

`17/2` cm

C

`120/(5 + 12sqrt(2))` cm

D

`120/(5 + 12sqrt(3))` cm

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