What condition would a parallelogram also be a rectangle?

Updated: 8/21/2019
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A rectangle is a parallelogram where all internal angles are equal at 90°

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Q: What condition would a parallelogram also be a rectangle?
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Is a parallelogram a rectangle also?

A rectangle is a parallelogram, but a parallelogram is not necessarily a rectangle. This is because a parallelogram can be so many other things, like a rhombus or a square.

A rectangle a rhombus?

That depends on the rectangle. If it is a square, then yes, it is also a rhombus. Otherwise, it would be a parallelogram.

Is every parallelogram is also a rectangle?

No. Most parallelograms are not rectangles. But every rectangle is a parallelogram.

Why can a rectangle be a rhombus?

A rectangle is a four-sided shape, a parallelogram. Since a rhombus is a parallelogram then it is also a rectangle in a sense. Along with a square, it is a type of rectangle.

What is a trapezoid that is also a rectangle?


Why would the formula of area of a parallelogram be similar to a rectangle?

Because the area of a parallelogram is length times perpendicular height and the area of a rectangle is also length times perpendicular height

What are other names for a parallelogram?

A parallelogram is also a square, rhombus, and rectangle.

What is a parallelogram with all sides the same length but it is not a rectangle?

That would be a rhombus. (It can't be a 'square', because a square is also a rectangle.)

When can a parallelogram be a rectangle?

When all 4 corners are right angles. A parallelogram has two pairs of parallel sides. A rectangle has two pairs of parallel sides; therefore a rectangle is a parallelogram. A rectangle also has four 90° angles; a parallelogram does not necessarily have four 90° angles, therefore a parallelogram may, or may not, be a rectangle.

What kind of quadrilateral is a rectangle?

A rectangle is a type of quadrilateral, and it also is a parallelogram.

What does a rectangle need to be a parallelogram?

All rectangles are also parallelograms. A parallelogram needs four 90-degree angles to be a rectangle

How is a rectangle a parallelogram?

A parallelogram is defined as a two-dimensional figure with two pairs of parallel sides. Since a rectangle has two pairs of parallel sides, it is also a parallelogram. A rectangle differs from a parallelogram in that it always has four equal angles.