A parallelogram with a right angle is a rectangle.
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∙ 2015-10-28 18:42:06A trapezoid is a quadrilateral which must have one pair of parallel sides. If the other pair of sides is also parallel then it is a parallelogram.
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Because it is a regular 4 sided quadrilateral having 4 equal sides and 4 equal interior right angles
A rectangle is a special form of parallelogram that has adjacent sides perpendicular to each other or all the inside angles are 90 degrees.
A trapezoid is a four-sided figure with two opposite sides parallel. A rectangle (and also a parallelogram) is a trapezoid but BOTH pairs of opposite sides are parallel.
A trapezoid is a quadrilateral which must have one pair of parallel sides. If the other pair of sides is also parallel then it is a parallelogram.
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Because it is a regular 4 sided quadrilateral having 4 equal sides and 4 equal interior right angles
They are what makes it a rectangle. The rectangle is a special kind of parallelogram. The perpendicular lines cause it to be called a rectangle.
A square is a rectangle in which all the sides are the same length.
It is a right angled parallelogram.
A rectangle is a special form of parallelogram that has adjacent sides perpendicular to each other or all the inside angles are 90 degrees.
A rectangle is defined as "a parallelogram with one right angle" A parallelogram is defined as "a quadrilateral with opposite sides equal and parallel" This makes a rectangle a sort of second-generation quadrilateral!
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The main difference between a rectangle and a parallelogram that makes rectangle a special case of the parallelogram is the fact that all the angles of a rectangle are equal to 90 degrees. This is not the case in a parallelogram because the adjacent angles are only supplementary to each other.
A trapezoid is a four-sided figure with two opposite sides parallel. A rectangle (and also a parallelogram) is a trapezoid but BOTH pairs of opposite sides are parallel.
"Many geometric shapes have an attribute that makes them unique." (see related link)