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If A(cos alpha, sin alpha), B(sin alpha...

If `A(cos alpha, sin alpha), B(sin alpha, -cos alpha), C(1,2)` are the vertices of a triangle, then as `alpha` varies the locus of centroid of the `DeltaABC` is a circle whose radius is :

A

`(2sqrt(2))/(3)`

B

`sqrt((4)/(3))`

C

`(2)/(3)`

D

`sqrt((2)/(9))`

Text Solution

Verified by Experts

The correct Answer is:
D
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