Question

what is the perimeter? if necessary, round to the nearest tenth. miles

Explanation:

Step1: Calculate hypotenuse $c$

Use Pythagorean theorem: $c = \sqrt{4.6^2 + 1.1^2}$
$c = \sqrt{21.16 + 1.21} = \sqrt{22.37} \approx 4.73$

Step2: Sum all sides for perimeter

Add all three sides: $4.6 + 1.1 + 4.73$

Answer:

10.4 miles