Measurements

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. SI unit of distance is .

2. International system of units were introduced in year .

3. is the distance around.

4. is the region occupied by the close shape.

5. SI unit of weight is .