Answer: 13 ft
Step-by-step explanation: To find the missing side, we can use the Pythagorean theorem (
). In a right triangle, the hypotenuse (the side directly across from the right angle) is always c in the Pythagorean theorem. So, we plug in 5 and 12 for a and b. It doesn't matter in which slot. To find the missing side, you solve
. We know that 5 × 5 = 25 and 12 × 12 = 144. Then, as per the equation above, we add 25 and 144 to get 169. We are left with 169 =
. Since we are just looking for c, we need to get rid of the squared symbol. To do that, we find the square root of
, which is c, and then find the square root of 169, which is 13 ft.