Express each of the following in standard form:

Express 5 hectares in cm2 (1 hectare = 10000 m²)

Given that, 5 hectares = 5 × 10000 m² (∵1 hectare = 10000 m²)

= 5 × 10000 × 100 × 100 cm²

Standard form = 5 × 10000 × 100 × 100

= 5 × 10 × 10 × 10 × 10 × 10 × 10 × 10 × 10

Using the law of exponent,

= 5 × 10⁸ cm²

∴ The standard form is 5 × 10⁸ cm²