Q30. What is the need of measurement?
Q31. Why a tailor uses a tape whereas a cloth merchant uses a metre rod for measurement?
Q32. Write two examples where objects undergo combinations of different types of motion.
Q33. Write the similarity and dissimilarity between motion of a bicycle and a ceiling fan that has been switched on.
Q34. How can we measure the length of a curved line?
Q35. Diya is using a scale which is broken at one end. She is not able to see the zero mark. What precaution should she take while measuring the length of a book using this scale?
Q36. Write a note on ancient method of measurement.
Q37. What is the need of common system of measurement?