Answer
a) $72 mm^{2}$
b) 0.50
c) 36 mm
d) 6.0 mm
e) 2.0
Work Step by Step
a) 12mm(5.98mm)=$71.76mm\approx72 mm^{2}$ (2 sig figs)
b) $\frac{5.98mm}{12mm}= 0.49833333...\approx0.50$ (2 sig figs)
c) 2(12mm)+2(5.98mm)= $35.96mm\approx36mm$ (to the nearest millimeter)
d) 12mm-5.98mm= $6.02mm\approx6.0mm$ (2 sig figs)
e) $\frac{12mm}{5.98mm}=2.00668896\approx2.0$ (2 sig figs)
