A right triangle hypotenuse has length of 5. If one keg has length of 2, what is the length of the other leg?

2 answers

x^2 + 2^2 = 5^2

solve for x
a^2 + b^2 = c^2

2^2 + b^2 = 5^2

4 + b^2 = 25

b^2 = 21

b = 4.5826