Question

5 n ( n = 3.14) /12
4 in
what is the length of radius r to the nearest tenth

Answer 1

To find the radius \( r \) given the expression \( \frac{5n}{12} \), where \( n = 3.14 \), we can substitute the value of \( n \) into the expression:

\[
r = \frac{5 \times 3.14}{12}
\]

Calculating this step by step:

1. Multiply \( 5 \times 3.14 \):

\[
5 \times 3.14 = 15.7
\]

2. Now divide \( 15.7 \) by \( 12 \):

\[
r = \frac{15.7}{12} \approx 1.3083
\]

Rounding \( 1.3083 \) to the nearest tenth gives:

\[
r \approx 1.3
\]

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