Limits of Accuracy

• Work out the smallest possible area of the rectangle below (You may need to work out the bounds of the 2 numbers below)

  18.75 cm²

  
• Work out the greatest possible difference in their heights? (You may need to work out the bounds of their heights)

  8 cm

  
• Work out the boy's fastest possible average speed?

  8.4 m/s

  
• Work out if the van can hold 10 barrels?

  The van cannot safely hold 10 barrels