While students and professionals will use rulers almost every day, Công ty xây dựng reading a ruler is a useful life skill. Keep reading to discover ways to weave lanyard into a colorful bracelet. Calculating inches in thirds (1/3 or 2/3) is usually a bit tricky. The 16 tick marks between every entire line mark can't be divided into thirds without utilizing a bit of imagination. It is denoted by the second-longest line.