Question

a triangle with two sides labeled 20.6 km, one side labeled 4.9 km, and a blank box to fill in the total length (in kilometers).

Explanation:

Step1: Identify the shape (isosceles triangle)

The figure is an isosceles triangle with two equal sides of \(20.6\) km and a base of \(4.9\) km. To find the perimeter, we sum all three sides.

Step2: Calculate the perimeter

Perimeter \(P = 20.6 + 20.6 + 4.9\)
First, add the two equal sides: \(20.6 + 20.6 = 41.2\)
Then add the base: \(41.2 + 4.9 = 46.1\)

Answer:

\(46.1\) kilometers