It is 0.00017 miles, approx.
0.028. 1 mm is one-thousandth of a metre.
There are about 11 inches approximately
280mm = 0.028 metres.
280mm = 11.0236 inches.
280 mm = 11.02 inches
There are 10mm in 1cm so 28cm = 280mm.
Divide by 25.4 to convert mm into inches = 280/25.4 inches
2,8 cm is 28 mm
304.8 mm = 1 ft (exactly) → 280 mm = 280 / 304.8 ft ≈ 0.92 ft (≈ 11 inches)
They planned and progressed in part- to attack the city with Artillery bombardment- the famous Big Berthas being brought into action- the 280MM railroad cannons- accurate range II miles- free-fire or terrorist range- well over twenty five. One hit and demolished a CHURCH on Good Friday- bad news.
33149.782 miles
93 miles