R=3HR=\sqrt{3} HR=3H
R=4H\mathrm{R}=4 \mathrm{H}R=4H
R=43H\mathrm{R}=4 \sqrt{3} \mathrm{H}R=43H
R=32H\mathrm{R}=3 \sqrt{2} \mathrm{H}R=32H
