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Q: Diagonal scale is used to measure :
  • A. metre, decimetre and centimetre
  • B. metre, decimetre, centimetre and angle
  • C. metre and angles
  • D. metre and decimetre only
Correct Answer: Option A - Diagonal scale – On a diagonal scale, it is possible to measure three dimensions such as metres, decimetres and centimetres, units, tenths and hundredths, yards, feet and inches etc. A short length is divided into a number of parts by using the principle of similar triangles in which like sides are proportional.
A. Diagonal scale – On a diagonal scale, it is possible to measure three dimensions such as metres, decimetres and centimetres, units, tenths and hundredths, yards, feet and inches etc. A short length is divided into a number of parts by using the principle of similar triangles in which like sides are proportional.

Explanations:

Diagonal scale – On a diagonal scale, it is possible to measure three dimensions such as metres, decimetres and centimetres, units, tenths and hundredths, yards, feet and inches etc. A short length is divided into a number of parts by using the principle of similar triangles in which like sides are proportional.