To find the area of a circle, you can use the formula:
\[ \text{Area} = \pi r^2 \]
where \( r \) is the radius of the circle.
Given that the radius \( r = 75 \) mm and using \( \pi \approx 3.14 \), we can substitute the values into the formula:
\[ \text{Area} \approx 3.14 \times (75)^2 \]
First, calculate \( 75^2 \):
\[ 75^2 = 5625 \]
Now, substitute this value back into the area formula:
\[ \text{Area} \approx 3.14 \times 5625 \]
Now, perform the multiplication:
\[ \text{Area} \approx 17647.5 \]
Thus, the approximate area of the circle is:
\[ \text{Area} \approx 17647.5 \text{ mm}^2 \]
Therefore, the area of the circle rounded to the tenths place is 17647.5 mm².
1 answer