3. The centroid of A ABC is (2,7). The points B, C lie on x, y axes respectively and
A=(4,8). Find B and C
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A (X1, Y1) = (4,8)
B (X2,Y2) = ( X, 0)
C (X3,Y3) = ( 0, Y)
Centroid = ((X1+X2+X3)/3 , (Y1+Y2+Y3)/3)
(2,7) = ( (4+X+0)/3 , (8+0+Y)/3)
(2,7) = ((4+X)/3 , (8+Y)/3)
Compare X & Y coordinates
X = 2 , Y = 13
B (X2,Y2) = ( X, 0)
C (X3,Y3) = ( 0, Y)
Centroid = ((X1+X2+X3)/3 , (Y1+Y2+Y3)/3)
(2,7) = ( (4+X+0)/3 , (8+0+Y)/3)
(2,7) = ((4+X)/3 , (8+Y)/3)
Compare X & Y coordinates
X = 2 , Y = 13
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