17 A piece of cardboard has the shape of a pentagon in which is a square and is an isosceles triangle with a right angle at . Prove that the pentagon can be divided in two different ways in three parts that can be rearranged in order to recompose a right isosceles triangle.
17 Ang isang piraso ng karton ay may hugis ng isang pentagon kung saan ang ay isang parisukat na at ay isang isosceles triangle na may karapatan sa isang anggulo at . Patunayan na pentagon ay maaaring hatiin sa dalawang iba't-ibang paraan sa tatlong mga bahagi na maaaring rearranged upang recompose ng karapatan tatsulok isosceles.