To determine the area of the sandbox, we can use the formula for area \( A = \frac{1}{2}bh \). In this case, it seems that you used \( A = 12bh \), but typically the formula for the area of a right triangle (if that's what you're calculating) is associated with a factor of \( \frac{1}{2} \), which could also lead to different interpretations depending on the context.
Assuming we're going with that structure and you want to find the area using \( b = 2.4 \) and \( h = 3.5 \), the substitution would look like this:
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Substitute the values into the formula: \[ A = \frac{1}{2} \times (2.4) \times (3.5) \]
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Now calculate the multiplication part: \[ A = \frac{1}{2} \times 2.4 \times 3.5 \] First, compute \( 2.4 \times 3.5 \): \[ 2.4 \times 3.5 = 8.4 \]
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Then apply \( \frac{1}{2} \): \[ A = \frac{1}{2} \times 8.4 = 4.2 \]
Therefore, the area of the sandbox is \( 4.2 , m^2 \).
In summary, the complete statements with substitutions and calculations are:
- Formula: \( A = \frac{1}{2}bh \)
- Substitute: \( A = \frac{1}{2} \times (2.4) \times (3.5) \)
- Area of the sandbox: \( 4.2 , m^2 \).