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The centroid of a triangle is (3, 2) and two vertices are (1, 1) and (4, 2). Find the third vertex.
A(5, 3)
B(4, 3)
C(4, 4)
D(3, 4)
Answer & Solution
Correct answer: B. (4, 3)
Coordinate sums must be 9 and 6, so the third vertex is (9 - 5, 6 - 3) = (4, 3).
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