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JEE MAIN 2021
18-03-21 S2
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 $\triangle A B C$, then $(R+r)$ is equal to :
Select the correct option:
A
$\frac{9}{\sqrt{2}}$
B
$7 \sqrt{2}$
C
$2 \sqrt{2}$
D
$3 \sqrt{2}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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Mathematics
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