Divide the circle into 120 divisions wthout transendental formulas $\mathrm{16}\bullet \sin \left(\pi /\mathrm{60}\right)=$ $2\bullet \left(1-\sqrt{3}\right)\bullet \sqrt{5+\sqrt{5}}+\sqrt{2}\bullet \left(\sqrt{5}-1\right)\bullet \left(\sqrt{3}+1\right)$