Question 6Find the perimeter of the shape below, with sides marked $2 \,\mathrm{cm}$ and $4 \,\mathrm{cm}$. $12 \,\mathrm{cm}$$16 \,\mathrm{cm}$$18 \,\mathrm{cm}$$20 \,\mathrm{cm}$$22 \,\mathrm{cm}$
