Question

what is the length of the missing leg? if necessary, round to the nearest tenth.
b = square kilometers

Explanation:

Step1: State Pythagorean theorem

For right triangle: $a^2 + b^2 = c^2$, where $c=8$, $a=2$

Step2: Rearrange to solve for $b$

$b = \sqrt{c^2 - a^2}$

Step3: Substitute values and calculate

$b = \sqrt{8^2 - 2^2} = \sqrt{64 - 4} = \sqrt{60} \approx 7.7$

Answer:

7.7 kilometers