Question

please answer this question.​

Answer 1

Explanation:

2 ) ii) In the International System of Units (SI), the standard unit of area is the square metre (written as m2), which is the area of a square whose sides are one metre long.

2) i) A metric unit of area equal to a square with 100-metre sides, hectare is used in the measurement of land across the world.

3) Calculating Density of Solids or Liquids:::

• Figure out the volume, by either measuring the dimensions of a solid or using a measuring jug for a liquid. ...
• Put the object or material on a scale and figure out its mass.
• Divide the mass by the volume to figure out the density (p = m / v).

4) x g = 2.75kg(1000= 1 kg ) = 2750 g

D =m/v

m =2750 g / 250 = 11.0g/cm^3

therefore density = 11.0