Convert the following units of area: 

A) 825 acres to hectares B) 3905 cm^2 to m^2

Let's solve each conversion step-by-step.

### A) 825 acres to hectares

1 acre is approximately equal to 0.404686 hectares.

\[
825 \text{ acres} \times 0.404686 \, \text{hectares/acre} = 333.86445 \, \text{hectares}
\]

So, **825 acres is approximately 333.86 hectares**.

### B) 3905 cm² to m²

1 square meter (m²) is equal to \(10,000 \, \text{cm}^2\).

\[
3905 \, \text{cm}^2 \div 10,000 = 0.3905 \, \text{m}^2
\]

So, **3905 cm² is equal to 0.3905 m²**.

Would you like more details on any of these conversions?

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### Related Questions:

1. How do you convert hectares to acres?
2. What other units are commonly used to measure area?
3. How many square meters are there in 1 square kilometer?
4. What is the area of a circle with a radius of 10 cm in m²?
5. How do you convert square inches to square feet?

### Tip:
For area conversions, remember that the conversion factor needs to be squared when converting between squared units, such as cm² to m².

Convert the following units of area: A) 825 acres to hectares B) 3905 cm^2 to m^2

Explore how to convert 825 acres to hectares and 3905 cm² to m² with step-by-step calculations. This guide covers essential unit conversion techniques in area measurement, useful for students in Grades 6-8.

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