The length of a wire is 2.17 cm and radius is 0.46 cm. The number of significant digits in the value of volume of wire is ________________

The volume of wire

$\begin{array}{c}=\pi r^{2}l=3.14\times (0.46{)}^2\times 2.17{\mathrm{cm}}^3\\ =1.4418{\mathrm{cm}}^3=1.4{\mathrm{cm}}^3\end{array}$

(The number of significant figures in multiplication or division should equal to minimum number of decimal points of a quantity involved in the operation.)

Thus, number of significant digits in 1.4 cm³ is 2