Question

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Answer 1

Step-by-step explanation:

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Answer 2

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Vertex of triangle is (1,1) and midpoint of sides through this vertex is (−1,2) and (3,2)

Co-ordinate of B is (x,y)

co-ordinates of B is(1+x/2 = -1, 1+y/2 = 1) ::

((x,y) : (-3,3))

Similarly, co-ordinate of C comes out to be (5,3)

Thus centroid is 1-3+5/3, 1+3+3/3 ⇒(1, 7/3)...