"Right fore foot of Indian Elephant. U, ulna; R, radius; c, cunelform; l, lunar; sc, scaphold; u, unciform;…

Pressure upon an oblique surface. In the image, pressure acts on all sides of the surface equally.

Illustration of a trapezium, a quadrilateral having no two sides parallel. The diagonal is labeled in…

Illustration of a trapezoid with altitude a and bases b and b' used to demonstrate that the area is…

Illustration used to prove the theorem "The line bisecting one of the non parallel sides of a trapezoid…

Trapezoid with dimensions labeled. Trapezoid can be used to calculate area.

Illustrations of an isosceles trapezoid with equal diagonals drawn.

Illustrations of a trapezoid with a line joining the midpoints of the diagonals.

Illustrations of a trapezoid with a line segment drawn parallel to one side

Illustrations to show trapezoids with lines joining the midpoints of the sides of any quadrilateral,…

Illustration of a trapezoid, with the median drawn. The median of a trapezoid is parallel to the bases,…