It would help if you gave us your answers to parts (a) and (b) as well.
What is part a even asking for? What are x bar and y bar in the first place? The coordinates of the centroid?
Anyway, as a quick check, make sure that both (b,c) and (a/2,0) lie on the line that's supposed to go through them. (That is, they satisfy the equation you got in part (b).) If not, that equation is wrong.
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What is part a even asking for? What are x bar and y bar in the first place? The coordinates of the centroid?
Anyway, as a quick check, make sure that both (b,c) and (a/2,0) lie on the line that's supposed to go through them. (That is, they satisfy the equation you got in part (b).) If not, that equation is wrong.
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