what is the perimeter? if necessary, round to the nearest tenth. yards
what is the perimeter? if necessary, round to the nearest tenth. yards
Answer
Explanation:
Step1: Find the hypotenuse c
Use the Pythagorean theorem $c=\sqrt{a^{2}+b^{2}}$, where $a = 7.1$ and $b=3.2$. So $c=\sqrt{7.1^{2}+3.2^{2}}=\sqrt{50.41 + 10.24}=\sqrt{60.65}\approx7.8$.
Step2: Calculate the perimeter P
The perimeter of a triangle is $P=a + b + c$. Substitute $a = 7.1$, $b = 3.2$ and $c\approx7.8$ into the formula. So $P=7.1+3.2 + 7.8=18.1$.
Answer:
$18.1$