Drag the amounts to order them from greatest to least.

1 in. ≈ 2.54 cm 1 ft = 12 in.

1.8ft 56cm 20in

So the first thing to do is get all amounts into one common unit. I will convert them all to ft.

1.8ft.

20in = 1.666ft

56cm = 56/2.54cm = 22.05in = 1.8375ft.

So from that, You would have 56cm - > 1.8ft - > 20in. for Greatest to Least.