Yes.
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A parallelogram doesn't necessarily have any perpendicular sides, but it can. If it has one single 90-degree angle, then it has four of them, and it's a rectangle or square. A parallelogram without perpendicular sides is a rhomboid or rhombus.
A TrapeziumGoodness, no. A trapezium only has one pair of parallel sides. As far as I know, the answer is just a plain old parallelogram. You may be confusing this with a rhombus, equilateral parallelogram, or diamond, or even lozenge. The only parallelogram with adjacent sides that are equal, and therefore all sides equal (since opposite sides of a parallelogram are equal).By the way, did you notice you spelled parallelogram incorrectly? - 2 ells followed by one ell.the answer is RHOMBOID
A close figure is a figure with no open spaces in it and is completely closed. Examples are: quadrilateral square rhombus parallelogram quadrangle rhomboid rectangle oblong kite trapezium trapezoid
what is the formula to finding the total surface area of a rhomboid?!
For a parallelogram that is NOT a rectangle or square (i.e. a rhombus or rhomboid), multiply the base times the height. Draw a line through the parallelogram so that it is a large rectangle in the middle, and two small triangles to each side.Now you can see that the area of the parallelogram is the same as a rectangle of the same height and width. You must use the "height" (distance between top and bottom), not the length of the slanted sides.Area = base times height. (A=bh)Area = base*heightBase x height