Question

16.1 mi, 16.1 mi, 20.5 mi, miles

Explanation:

Step1: Identify the sides of the triangle

The triangle has two sides of length \( 16.1 \) mi and one side of length \( 20.5 \) mi. To find the perimeter, we sum the lengths of all three sides.

Step2: Calculate the perimeter

The perimeter \( P \) of a triangle is given by the sum of its three sides. So, \( P = 16.1 + 16.1 + 20.5 \).
First, add \( 16.1 + 16.1 = 32.2 \). Then, add \( 32.2 + 20.5 = 52.7 \).

Answer:

\( 52.7 \)