Atriangle has sides measuring 15 15 and 15sqrt2 what are the angle measures of the triangle

We observe that we are in the presence of a rectangular triangle.
 Therefore, we have:
 An angle of 90 degrees.
 An angle that is given by:
 sine (x) = (15 / (15 * root (2)))
 sine (x) = (1 / root (2))
 x = asine (1 / root (2))
 x = 45 degrees
 And an angle that is given by:
 180-90-45 = 45 degrees
 
 The angle measures of the triangle are:
 90-45-45 degrees

The length of what is left would be 1 1/2 feet long.