Question

What is the length of the missing leg? If necessary, round to the nearest tenth.

Answer 1

Answer:

3.5 km

Step-by-step explanation:

For this question, we must use the pythagorean theorem: $a^{2}$+$b^{2}$=$c^{2}$

C is the hypotenuse which is 4 km. We can set A as 2 km. We would plug in the values to get $2^{2}$+ $b^{2}$=$4^{2}$.

Then we must isolate the b value. We get = -. This then simplifies down to  =12. Then we square root both sides to get b=3.5

Answer 2

Answer:

sqrt{12}

Step-by-step explanation:

We can find how long the missing side is with the help of Pythagoras and his theorem.

a² = c² - b²

a² = 16 - 4

a² = 12

a = sqrt{12}