Answer:
x = sqrt(41)
Explanation:
We have a right triangle with height 5 and a base that is 1/2 of 8 = 4
We can use Pythagorean theorem
a^2 + b^2 = c^2 to find the length of the hypotenuse
5^2 + 4^2 = x^2
25+16 = x^2
41 = x^2
Take the square root of each side
sqrt(41) = x