Ametric ruler is divided into centimeters (em). into amaller united called millimeters (mm). linear mensurement centimeter is divided there are 10 millimeters in each centimeter to meesure the length of an object, place the object so that the zero line is directly in line with the beginning aong h side of of what you want to estimate the last (unknown) position then read the length in milimeters, agutn, position. measure. read the length of the object in centimeters, and alwevs estimating the last praotice. use a netric ruler to measure the lengths of the line begin measuring from the left side of the line. start 13 figure 1: line segments den precision from start line segment a is line segment b is line segment c is line segment dis_ line segment e is line segment f is line segment g is con or mm long or how many centimeters long is the metric ruler? long. m long. m long 1· 2· 3. 4· 5. 6· 7· 8. 9 how many millimeters long is the metric ruler? cm or_ mm ongor_ mm long or mm long or mm long or mm long or m cm or cm or cm or m long. m long m long m long. cm or ㎝ or mm long or -_ longic the metric rulet? len la h ow ha ny meters the metric na ler relers to the one u pro bably a 30cn/12 nchone. s