Question

What is the Value of x?

Answer 1

using the pythagorean theorem

a^2 +b^2 =c^2

x^2 + 8^2 = 15^2

x^2 +64 = 225

subtract 64 from each side

x^2 = 161

take the square root of each side

x =sqrt (161)

x=12.6886