Answer:
7.21
Step-by-step explanation:
We can use the Pythagorean theorem since this is a right triangle.
a^2 + b^2 = c^2
where a and b are the legs and c is the hypotenuse
12 ^2 + x^2 = 14^2
144 + x^2 = 196
Subtract 144 from each side
144-144 +x^2 = 196-144
x^2 = 52
Take the square root of each side
sqrt(x^2) = sqrt(52)
x =7.211102551
Rounding to the nearest hundredth
x = 7.21
