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Wouldn't think so, think of a trapezium shaped like a square with a triangle on one side...

The angles at one end of the figure are both 90o, and the angles at the other end will be supplementary, but not opposite angles.

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15y ago

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What is the difference in a trapezoid and a parallelogoram?

A trapezoid is a quadrilateral with at least one pair of parallel sides, while a parallelogram is a specific type of trapezoid where both pairs of opposite sides are parallel. This means that all angles in a parallelogram are supplementary, and its opposite angles are equal, whereas a trapezoid does not have these properties. Additionally, the diagonals of a parallelogram bisect each other, but this is not necessarily true for trapezoids.


True or false If opposite angles of a quadrilateral are supplementary then the quadrilateral is a parallelogram?

True


Is it true a trapezoid has both pairs of opposite angle that are congruent?

No only if its in the form of an isosceles trapezoid then its base angles will be the same but opposite angles are normally different.


does a trapezoid have four right angles and the opposite sides are parallel?

Neither of those descriptions is true of a trapezoid.


Which property is always true for a quadrilateral inscribed in a circle?

opposite angles are supplementary


True or False- If opposite angles of a quadrilateral are supplementary then the quadrilateral is a parallelogram?

false


Is this statement true or falseIf a quadrilateral is a parallelogram, then its opposite angles are always supplementary?

false


If a parallelogram has one right angle then all of its angles must be right?

Yes. This is true because opposite angles are congruent and adjacent angles are supplementary.


What shape has one pair of equal opposite angles?

A shape that has one pair of equal opposite angles is a parallelogram. In a parallelogram, opposite angles are equal, and consecutive angles are supplementary. This property is true for all types of parallelograms, including rectangles and rhombuses.


Is it true opposite angles are supplementary?

No, only in certain, limited circumstances. Eg where a quadrilateral is (can be) circumscribed within a circle.


What is true about a trapezoid A opposite sides are equal B opposite angles are equal C both pairs of opposite sides are parallel D one pair of opposite sides is parallel?

A trapezoid (UK trapezium) has D)one set of opposite sides parallel although they are of unequal length. An isosceles trapezoid has two sets of equal angles, at the ends of each of the parallel sides.


Supplementary angles add to 270 degrees true or false?

False. Supplementary angles add to 180degrees.