A student is trying to remember some formulas from geometry. In what follows, assume A is area, V is volume, and all other variables are lengths. Determine which formulas are dimensionally consistent. (a) V = πr 2 h ; (b) A = 2 πr 2 + 2 πrh ; (c) V = 0.5 b h ; (d) V = πd 2 ; (e) V = πd 3 /6

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