Question 240244
Use Pythagorean theorem.
The 13 meter ladder will be the hypotenuse, one leg is 6 meters. You are asked to find the other leg
{{{a^2 + b^2 = c^2}}} Pythagorean theorem
{{{6^2 + b^2 = 13^2}}}
{{{36 + b^2 = 169}}}
{{{b^2 = 133}}}
{{{b = sqrt(133)}}}
{{{b = 11.53 }}} meters