there are 100cm in a 1 metre
so
there are $${{\mathtt{100}}}^{{\mathtt{2}}}$$ $${{\mathtt{cm}}}^{{\mathtt{2}}}$$ in $${{\mathtt{1}}}^{{\mathtt{2}}}$$ $${{\mathtt{m}}}^{{\mathtt{2}}}$$
that is
$$10000\;cm^2\;=\;1\;m^2$$
$$\\11000m^2 = 10000\times 11000\;cm^2\\\\
11000m^2 = 110\;000\;000\;cm^2$$
there are 100cm in a 1 metre
so
there are $${{\mathtt{100}}}^{{\mathtt{2}}}$$ $${{\mathtt{cm}}}^{{\mathtt{2}}}$$ in $${{\mathtt{1}}}^{{\mathtt{2}}}$$ $${{\mathtt{m}}}^{{\mathtt{2}}}$$
that is
$$10000\;cm^2\;=\;1\;m^2$$
$$\\11000m^2 = 10000\times 11000\;cm^2\\\\
11000m^2 = 110\;000\;000\;cm^2$$