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Question 41
What are the co-ordinates of the centroid of a triangle, whose vertices are A(2 , 5), B(-4 , 0) and C(5 , 4)?
Solution
centroid = $$(\frac{x_{1}+x_{2}+x_{3}}{3} , \frac{y_{1}+y_{2}+y_{3}}{3})$$ = $$(\frac{2-4+5}{3} , \frac{5+0+4}{3})$$ = $$(1 , 3)$$
so the answer is option B.
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