JEE Math Practice Question
Let the centroid of an equilateral triangle ABC be at the origin. Let one of the sides of the equilateral triangle be along the straight line x + y = 3. If R and r be the radius of circumcircle and incircle respectively of $$\Delta$$ABC, then (R + r) is equal to :
- A.$$7\sqrt 2 $$
- B.$${9 \over {\sqrt 2 }}$$
- C.$$2\sqrt 2 $$
- D.$$3\sqrt 2 $$
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