Question

5n /12
4 in
what is the length of radius r to the nearest tenth of an inch?
use 3.14 for n

Answer 1

To find the length of the radius \( r \) using the given formula \( \frac{5n}{12} \) and substituting \( n = 3.14 \):

1. Substitute \( n \):
\[
r = \frac{5 \times 3.14}{12}
\]

2. Calculate the numerator:
\[
5 \times 3.14 = 15.7
\]

3. Now divide by 12:
\[
r = \frac{15.7}{12} \approx 1.30833333
\]

4. Round to the nearest tenth:
\[
r \approx 1.3
\]

Thus, the length of the radius \( r \) to the nearest tenth of an inch is approximately \( 1.3 \) inches.