Chapter 1, Problem 50P

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) $V=\pi r^{2}h$; (b) $A=2\pi r^2+2\pi rh$; (c) $V=0.5bh$(d) $V=\pi d^2$; (e) $V=\pi d^3/6$.