1 Square footage: To measure commercial square footage, multiply the length of the room in feet by its width. 2  For example, a room that is 12 feet (3.7 m) long by 12 feet (3.7 m) wide is 144 square feet (13.4 square m).3  12x12=144.4  Unusual shapes: Take care when measuring irregularly shaped sections of a room. If the length of the space with the diagonal wall was 10 feet (3.0 m) and its width was 8 feet (2.4 m), the square footage of the area would be 40 feet (3.7 square m). 2  That is because the wall cuts the total square footage, which would have been 80 if the room had no wall intersecting it, in half. 3  10x8=80 and 80/2=40.
Thus karate followed the rule change and the highest rank in Shotokan is 10th dan now. In some styles of karate a higher degree wears a different color belt. A practitioner of 6th, 7th or 8th dan would wear a red and white belt (photo above). For 9th and 10th dan a full red belt may be worn. These belts are also the imitation from the judo policy.
The belt ranking system in this school was 8 belts, but there were only four colors: white, green, brown, and black belt. Each color had a level or two in it. And, the odd thing, we werenât on contract, and people could go as fast as they learned the material.