How do I publish off topic questions?

Isocseles triangle with   legs   =   x        x^2 + x^2 = 10^2    (Pythag theorem)

                                                                    x = sqrt 50

8 triangles     area = 1/2 bh     b and h = sqrt 50

                            8 * 1/2 * sqrt 50  sqrt 50 =   200 cm²

There used to be an 'Off Topic' button.... but people have posted that it is gone ....so now people just post 'Off Topic'   at the beginning of their post.

     Oh...yah....don't change your posts (like you did thisone) after someone has answered them unless you make note of it