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A and B are two points on a circle with ...

A and B are two points on a circle with centre O. AT is a tangent, such that `angle BAT = 45^@`.N is a point on OA, such that BN= 10 cm. The length of the median OM of the `triangle NOB` is:

A

`5 sqrt3 cm`

B

`5 cm`

C

`10 sqrt2 cm`

D

`5 sqrt2 cm`

Text Solution

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The correct Answer is:
B
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