Q: How do you define a rectangle?

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More important, what is the question? Four different lengths do not define a rectangle.

Yes, but that's not enough to define a rectangle, because it's also true ofany other parallelogram.In order to be a rectangle, it must have 2 pairs of equal sides AND a right angle.

crossed rectangle is not a rectangle, rectangle have to have 90 degree angles.

The perimeter of a rectangle is length + width x 2 = perimeter. * * * * * That is misleading since that would be evaluated as L + W2 or L + 2W. The perimeter of any polygon is the sum of the lengths of its sides. A rectangle has two sides of the same length (L) and the other two of the same width (W). So the perimeter is 2*L + 2*W or 2*(L + W).

If you can only make one rectangle, your number's prime. If you can make more than one, it's composite.

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More important, what is the question? Four different lengths do not define a rectangle.

The definition of congruent is...Figures that have the same size and shape.

No. A triangular pyramid describes a triangle whose base is a triangle (not just the sides which define it as a pyramid), whereas a rectangular pyramid is one whose base is a rectangle. A triangle and a rectangle are not the same (a triangle is not a rectangle, and a rectangle is not a triangle), so it would be incorrect to refer to a triangle-based pyramid as a rectangle pyramid.

A rectangle is not a trapezoid. A trapezoid is defined as a quadrilateral with one pair of parallel sides and another pair that is not parallel. That description cannot be applied to a rectangle. It is only if you define a trapezoid as a quadrilateral with one pair of parallel sides and say nothing at all about the other sides, can a rectangle be said to be a trapezoid. But you would have to be mathematically incompetent to use that as a definition of a trapezoid.

Yes, but that's not enough to define a rectangle, because it's also true ofany other parallelogram.In order to be a rectangle, it must have 2 pairs of equal sides AND a right angle.

Coplanar means "on the same plane". A plane can be a figure or shape like a rectangle. Coplanar points means points that belong on the same plane.

It is a 4 sided quadrilateral shape having 2 pairs of parallel sides and 4 interior angles of 90 degrees as well as 2 diagonals

crossed rectangle is not a rectangle, rectangle have to have 90 degree angles.

The perimeter of a rectangle is length + width x 2 = perimeter. * * * * * That is misleading since that would be evaluated as L + W2 or L + 2W. The perimeter of any polygon is the sum of the lengths of its sides. A rectangle has two sides of the same length (L) and the other two of the same width (W). So the perimeter is 2*L + 2*W or 2*(L + W).

If you can make more than one rectangle, it's a composite number. If you can only make one, it's prime.

If we define "base" as a line or surface on which a figure is regarded as standing, then we won't be able to answer this definitively without seeing which way the figure is oriented.

If you can only make one rectangle, your number's prime. If you can make more than one, it's composite.