Question

a camper attaches a rope from the top of her tent, 4 feet above the ground, to give it more support. if she stakes the rope to the ground 6 feet from the middle of her tent, about how long is the rope from the ground to the tent?
4.5 feet
8 feet
10 feet
7.2 feet

Explanation:

Step1: Apply Pythagorean theorem

Let $a = 4$, $b = 6$, find $c$. $c=\sqrt{a^{2}+b^{2}}$.

Step2: Calculate

$c=\sqrt{4^{2}+6^{2}}=\sqrt{16 + 36}=\sqrt{52}\approx7.2$.

Answer:

7.2 feet