Turning to the alternative format ‘[numeral]RADIANS’, we find ourselves even more out of luck. Taking any one of the first ten spelled-out numerals in this form, we find that we have for the ciphertext character ‘O‘ one of either ‘R’, ‘A’ or ‘D’, not one of which permits us to follow this format with a further numeral from the same set in our plaintext.

Finally, we do have the option of ‘ELEVENRADIANSNINEINCHES…”, but this again takes us way off the map to the North.

So, basically, if we want to:

1. heed the indicated ordering of specifying a Radian (or number of Radians) followed by a distance in inches; and
2. have the actual word ‘RADIAN[S]’ appear in the corresponding place in our plaintext,

then we are formally limited to one of the following three partial candidates, and no others.

And for completeness, finally, we should probably also give some passing consideration to:

where the missing numeral in the first example is one of ‘FIVE’ or ‘SIX’, in the second, ‘FIVE’, ‘SIX’ or ‘NINE’.