Moreover, the diagonals divide each other in the same proportions. The diagonals of an isosceles trapezoid have the same length that is, every isosceles trapezoid is an equidiagonal quadrilateral. Diagonals and height Another isosceles trapezoid. Since the lines AD and BC are parallel, angles adjacent to opposite bases are supplementary, that is, angles ∠ ABC + ∠ BAD = 180°. In the picture below, angles ∠ ABC and ∠ DCB are obtuse angles of the same measure, while angles ∠ BAD and ∠ CDA are acute angles, also of the same measure. In an isosceles trapezoid, the base angles have the same measure pairwise.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |