To convert strides to girth, we must know that how many strides are in a girth.
So, there are 0.5 strides in one girth
0.5 strides = 1 girth .................(1)
Now, we have to convert 4.5 strides to girth
if we multiply both sides of (1) with 4.5, we get
4.5 x 0.5 strides = 1 girth x 4.5
4.5 strides = (1 x 4.5) / 0.5 girth
4.5 strides = 4.5/0.5 girth
4.5 strides = 9 girth
Thus the answer is "9 girth".