Question 8A square has perimeter $24 \,\mathrm{cm}$. Find its area.$84 \,\mathrm{cm}^{2}$$64 \,\mathrm{cm}^{2}$$36 \,\mathrm{cm}^{2}$$24 \,\mathrm{cm}^{2}$$144 \,\mathrm{cm}^{2}$