Question 763998
RECTANGLE ------- a side and the diagonal are part of a right triangle and the other side length is the other leg of the triangle. Letting s = that other side length,

{{{s^2+7^2=25^2}}}
{{{s^2=25^2-7^2}}}
{{{highlight(s=sqrt(25^2-7^2))}}}, which is the length of the rectangle.


A little computation on s shows {{{s=sqrt(576)=sqrt(9*64)=24}}}
{{{highlight(s=24)}}}