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Straight Lines and Pair of Straight Lines question

2021 · 18 Mar · Shift 2 · Q34
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  5. /2021 · 18 Mar · Shift 2 · Q34

Straight Lines and Pair of Straight Lines question

2021 · 18 Mar · Shift 2 · Q34

JEE MainMathematicsStraight Lines and Pair of Straight LinesMCQ+4 / −1
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 Δ\DeltaΔ ABC, then (R + r) is equal to :
  1. A
    727\sqrt 272​
  2. B
    92{9 \over {\sqrt 2 }}2​9​
  3. C
    222\sqrt 222​
  4. D
    323\sqrt 232​
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