Question 859539


No idea.
You need the length of one of the unknown sides.


Or, if the legs are equal (isosceles triangle) then we can do it like this (a is the length of the triangle's leg):
{{{a^2 + a^2 = 3.2^2}}}
{{{2a^2 = 10.24}}}
{{{a^2 = 5.12}}}
{{{a = sqrt5.12}}} or 2.26 to 2 decimal places.