To calculate the area of a circle, you can use the formula:
\[ \text{Area} = \pi r^2 \]
Given that the radius \( r \) is 75 mm and using \( \pi \approx 3.14 \):
\[ \text{Area} = 3.14 \times (75)^2 \] \[ = 3.14 \times 5625 \] \[ \approx 176你的 6.25 \]
Now, performing the multiplication:
\[ 176.625 = 17671.875 \]
To the tenths place, the area of the circle is approximately:
\[ \text{Area} \approx 17671.9 , \text{mm}^2 \]
Thus, the correct area to the tenths place is:
17671.9 mm²
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