Question

What is the equation to solve this problem?

Answer 1

`\displaystyle\bf\\x^2+x^2=10^2\\\\2x^2=19^2\\\\x^2=(10^2)/(2)\\\\ √(x^2)=\sqrt{(10^2)/(2)}\\\\x=(10√(2))/(√(2)*√(2))\\\\x=(10√(2))/(2)\\\\\boxed{\bf x=5√(2)~~~~~~Correct~ansver:~~D)}`