A parallelogram has two parallel pairs of opposite sides. A rectangle has two pairs of opposite sides parallel, and four right angles. It is also a parallelogram, since it has two pairs of parallel sides. A square has two pairs of parallel sides, four right angles, and all four sides are equal.It is also a rectangle and a parallelogram. A rhombus is defined as a parallelogram with four equal sides.o, because all four sides of a rectangle don't have to be equal. However, the sets of rectangles and rhombuses do intersect, and their intersection is the set of squaresall squares are both a rectangle and a rhombus. We can put squares in the intersection of the two circles.
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A laptop displays its graphics on a liquid crystal display (LCD) screen. Most screens measure between 12 and 17 inches, and the size of the screen affects the overall size of the laptop. In addition, laptop screens can be: Black-and-white (16 grayscale) or color (65,536 colors) Active or passive matrix.