caption: The image shows a page from a book with a drawing of a circle and a triangle on it. The paper is filled with various shapes and lines, and there is some text written on it, likely describing the geometry of the hypotenuse. The shapes are arranged in a symmetrical pattern, with the circle in the center and the triangle on either side. The text is written in a neat, cursive font, and the paper has a slightly aged look to it, giving it a vintage feel.