Manual for Teachers George David Birkhoff, Ralph Beatley. his beginning with an isosceles triangls, or right triangls, or other special cass. An excellent supplementary exercise would be to lst the pupil choose the first triangle himself but to insist that it be not a special cass. ... Approximately 59Ad2a#39; or 59.0UAd. if the pupils do not know the tangent relation the teacher may wish to omit this exercise , though thisanbsp;...
|Author||:||George David Birkhoff, Ralph Beatley|
|Publisher||:||American Mathematical Soc. - 2000|