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Is it true that Opposite angles of a trapezoid are supplementary?
Wiki User
∙ 13y ago
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.
Wiki User
∙ 13y ago
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Is it true opposite angles are supplementary?
No, only in certain, limited circumstances. Eg where a quadrilateral is (can be) circumscribed within a circle.
Supplementary angles add to 270 degrees true or false?
False. Supplementary angles add to 180degrees.
Is a square the conseutive angles are supplementary?
True
What is true about both a rhombus and a square?
-- Opposite sides are parallel. -- Opposite sides are equal. -- All four sides are equal. -- Adjacent sides are equal. -- Adjacent angles are supplementary. -- Opposite angles are equal. -- Diagonals are perpendicular. -- Interior angles sum to two straight angles. -- Exterior angles sum to two straight angles.
What are all of the situations in which the statement Two vertical angles are supplementary is true?
If the lines are perpindicular then each pair of vertical angles are supplementary
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.
Which property is always true for a quadrilateral inscribed in a circle?
opposite angles are supplementary
does a trapezoid have four right angles and the opposite sides are parallel?
Neither of those descriptions is true of a trapezoid.
Is this statement true or falseIf a quadrilateral is a parallelogram, then its opposite angles are always supplementary?
false
True or False- If opposite angles of a quadrilateral are supplementary then the quadrilateral is a parallelogram?
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.
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.
Is it true that only 3 angles can be supplementary?
No. Any angles which add up to 180 degrees are supplementary.
Supplementary angles add to 270 degrees true or false?
False. Supplementary angles add to 180degrees.
Which can never be true for supplementary angles?
They cant be what their not.
