Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If (1, 2) is the centroid of an equilateral triangle and (–2, –2) is one of the vertices, then the equation of the incircle is-
Text Solution
Verified by ExpertsThe correct answer is:
B
In an equilateral triangle all centres coincide.
R = AG = 5
In-radius = GD = 
GA = 
The equation of the in-circle is (x – 1) 2 + (y – 2) 2 = 
or 4x 2 + 4y 2 – 8x – 16y – 5 = 0.
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