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We don't know who said that, but it's not true. Some quadrilaterals are trapezoids

and some aren't.

A quadrilateral is any drawing with four sides.

A trapezoid is any drawing with four sides and two of the sides are parallel.

So all trapezoids are quadrilaterals. But there are a lot of other quadrilaterals

that aren't trapezoids.

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Q: How do you mean all quadrilaterals are trapezoids?

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No, a quadrilateral isn't always a trapezoid. One way to consider it is that all trapezoids are quadrilaterals (four-sided shapes), but not all quadrilaterals are trapezoids. Some quadrilaterals are concave quadrilaterals, some are scalene convex quadrilaterals (called trapezoids in the UK), some would be trapezoids, and some would be parallelograms (rectangles, squares, rhomboids, rhombi). If parallelograms are considered a special case of trapezoids, then trapezoids would include all non-scalene convex quadrilaterals, which is a highly inclusive definition.

No but a trapezoid does belongs to the class of 4 sided quadrilaterals.

False but they are both 4 sided quadrilaterals

No because all trapezoids are 4 sided quadrilaterals with 4 interior angles that add up to 360 degrees.

There are many different quadrilaterals such as squares, trapezoids, rectangles, rhombus and parallelogram.

Related questions

All quadrilaterals are 4 sided shapes which includes trapezoids.

Yes because all 4 sided shapes are quadrilaterals which includes trapezoids.

No, a quadrilateral isn't always a trapezoid. One way to consider it is that all trapezoids are quadrilaterals (four-sided shapes), but not all quadrilaterals are trapezoids. Some quadrilaterals are concave quadrilaterals, some are scalene convex quadrilaterals (called trapezoids in the UK), some would be trapezoids, and some would be parallelograms (rectangles, squares, rhomboids, rhombi). If parallelograms are considered a special case of trapezoids, then trapezoids would include all non-scalene convex quadrilaterals, which is a highly inclusive definition.

No, a quadrilateral isn't always a trapezoid. One way to consider it is that all trapezoids are quadrilaterals (four-sided shapes), but not all quadrilaterals are trapezoids. Some quadrilaterals are concave quadrilaterals, some are scalene convex quadrilaterals (called trapezoids in the UK), some would be trapezoids, and some would be parallelograms (rectangles, squares, rhomboids, rhombi). If parallelograms are considered a special case of trapezoids, then trapezoids would include all non-scalene convex quadrilaterals, which is a highly inclusive definition.

trapezoids are trapezoids and squares are squares but all are quadrilaterals.

All polygons with 4 sides are called quadrilaterals which includes trapezoids

No but they are all 4 sided quadrilaterals

Rhombuses, rectangles, kites, parallelograms, and trapezoids are all irregular quadrilaterals.

No because all quadrilaterals are 4 sided shapes which includes parallelograms, trapezoids, squares, rectangles, kites......etc

No but they are both 4 sided quadrilaterals.

No but they are both 4 sided quadrilaterals

There are many types of quadrilaterals. These include parallelograms, rectangles, squares, rhombuses, trapezoids, scalene trapezoids, right-angled trapezoids, and isosceles trapezoids.

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