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Why is a parallelogram always a quadrilateral but a quadrilateral is only sometimes a parallelogram?
A parallelogram must have 4 sides and so it must be a quadrilateral. However, the sides of a quadrilateral need not be parallel so a quadrilateral need not be a parallelogram.
What is a quadrilateral parallelogram?
A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which the opposite sides are parallel.
If one diagonal of a quadrilateral bisects the other when is the quadrilateral a parallelogram?
In this case, the quadrilateral is sometimes a parallelogram.
If opposite angles of a quadrilateral are supplementary is the quadrilateral a parallelogram?
No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.
If all four sides of a quadrilateral are congruent then is the quadrilateral a parallelogram?
Yes. It's definitely a parallelogram, and also definitely a rhombus. And if one of its angles happens to be 90 degrees, then it's also a square.
Sides of a quadrilateral is parallel and congruent then the quadrilateral is a parallelogram?
The key is the object is quadrilateral with parallel sides. It is a parallelogram. It is also a rhombus.
What is a name for a parallelogram besides quadrangle?
A parallelogram is also a quadrilateral.
What kind of quadrilateral is a rectangle?
A rectangle is a type of quadrilateral, and it also is a parallelogram.
When can a quadrilateral also be called a parallelogram?
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Why is a parallelogram always a quadrilateral but a quadrilateral is only sometimes a parallelogram?
A parallelogram must have 4 sides and so it must be a quadrilateral. However, the sides of a quadrilateral need not be parallel so a quadrilateral need not be a parallelogram.
Is a quadrilateral also a parallelogram?
It may be. A quadrilateral has four sides, but they need not be all the same length, nor parallel to each other. It's true that a parallelogram *is* a quadrilateral.
What is a quadrilateral parallelogram?
A quadrilateral is a polygon with four sides. A parallelogram is a quadrilateral in which the opposite sides are parallel.
Is parallelogram and quadrilateral the same thing?
No. A parallelogram is a special kind of quadrilateral.
What shape is a parallelogram but not a quadrilateral?
A shape that is a parallelogram but not a quadrilateral doesn't exist.
If one diagonal of a quadrilateral bisects the other when is the quadrilateral a parallelogram?
In this case, the quadrilateral is sometimes a parallelogram.
If opposite angles of a quadrilateral are supplementary is the quadrilateral a parallelogram?
No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.
Are some parallelogram a square?
All squares are parallelograms. The definition of parallelogram is a quadrilateral with two sets of parallel sides. A square is a quadrilateral with two sets of parallel lines, so it is also a parallelogram
