Shyam's ruler got broken just before a test. However he was determined to use it for his test. He noted the end points of a line segment observed using the ruler as 4.3 cm and 9.8 cm. What is the actual length of the line segment?
Even a broken ruler can be used to measure the length of a line segment if it is long enough and the markings are clearly visible.
The length of the line segment = 9.8 - 4.3 = 5.5 cm