The ratio of the areas of each pair of adjacent triangles is the same as that between the lengths of the parallel sides.
32.
Every antiparallelogram has an isosceles trapezoid as its convex hull, and may be formed from the diagonals and non-parallel sides of an isosceles trapezoid.
33.
The plan is irregular, with a general trapezoidal shape, but without the main parallel side; the walls's thickness varies from 50 to 55 cm.
34.
Many houses that were already on Greenwich Avenue were moved to residential areas on the parallel side streets to make way for commercial blocks.
35.
They did not follow Gonen's route, instead opting to go north across the broad avenue and then turn left on a parallel side street.
36.
One register is used to clock in the serial stream, and the other is used to hold the data for the slower, parallel side.
37.
If your cup or bowl have parallel sides, instead of being cup-shaped or bowl-shaped, then they would both fill up at the same rate.
38.
My guess would be to plane both sides first, giving you parallel sides, then using one of these sides as a reference, joint both edges.
39.
The trapezoid graphs, intersections of trapezoids whose parallel sides all lie on the same two parallel lines, are also a generalization of the interval graphs.
40.
For a counterexample, start with a regular hexagon, then take a pair of opposite parallel sides and increase their length by a factor of 100.