IF (1, 1, 1) is the centroid of the triangle with vertices (2a, 3, 7) (- 4, 3b, - 8) . and (8, 4, 6c) find a,b,c
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centroid formula
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Answer:
a = -1/2 , b = - 2 , c = 2/3
Step-by-step explanation:
centroid of the triangle = (1 ,1,1 )
(2a - 4 + 8)/ 3 = 1 (3 + 3b + 4)/3 =1 (7 -8 + 6c)/3 = 1
2a + 4 = 3 3b + 7 = 1 6c - 1 = 3
2a = 3 -4 3b = 1 - 7 6c = 3 + 1
a = - 1/2 b = - 6/3 c = 4/6
= - 2 = 2/3
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