So we see the ratio of the sides of two similar octagons is 2:5 so let's say the first octagon has a side of 2 and the other has a side of 5. 2*8 = 16 and 5*8 = 40. 16:40 = 4:10 = and is again 2:5. So the answer is 2:5.
Two rational real solutions -8 & +8
45 stickers . 1145 -1100=45.
V= wlh so the answer is 56.25 or 56 1/4