Answer:
[tex]b\approx15.6 \ in[/tex]
Step-by-step explanation:
We can use the Pythagorean Theorem to solve this question:
[tex]a^2+b^2=c^2[/tex]
a and b are the legs of the triangle and c is the hypotenuse
Let's plug in the given values into the equation:
[tex]9^2+b^2=18^2[/tex]
[tex]81+b^2=324[/tex]
Subtract 81 from both sides
[tex]b^2=243[/tex]
Take the square root of both sides
[tex]b\approx15.6 \ in[/tex]
