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 colors include white, yellow, orange, green, blue, purple, brown, and black. In other martial arts systems, there is a slight change in the colors of the belt. In case of Taekwondo, the colors include white, yellow, green, blue, red, and black.In another martial art form that is called Brazilian Jiu-Jitsu, the colors are white, blue, purple, brown, black, and red for adults. The Brazilian Jiu-Jitsu belt color system for children includes white, yellow, orange, and green.n other martial arts systems, there is a slight change in the colors of the belt. In case of Taekwondo, the colors include white, yellow, green, blue, red, and black. In another martial art form that is called Brazilian Jiu-Jitsu, the colors are white, blue, purple, brown, black, and red for adults.