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If a quadrilateral contains three congruent sides the quadrilateral must be a parallelogram true or false?

Updated: 4/28/2022

Wiki User

∙ 12y ago

Best Answer

False. Could be a trapezoid.

Wiki User

∙ 12y ago

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Q: If a quadrilateral contains three congruent sides the quadrilateral must be a parallelogram true or false?

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If one pair of opposite angles of a quadrilateral is congruent then the quadrilateral is a parallelogram?

false; if both pairs

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

false

If opposite angles of a quadrilateral are supplementary is the quadrilateral a parallelogram?

No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.

If a quadrilateral is a square then it is a parallelogram. 2. A quadrilateral is a square if and only if it is a parallelogram.?

The second statement is false.

True or false the diagonals of a quadrilateral must bisect each other and be perpendicular to guarantee that the quadrilateral is a parallelogram?

False. Bisecting diagonals is sufficient to guarantee a parallelogram, but the diagonals will only be perpendicular if the sides of the parallelogram are equal.

Related questions

If both pairs of opposite angles of a quadrilateral are congruent then the quadrilateral is not a parallelogram?

False. If both pairs of opposite angles of a quadrilateral are congruent then the quadrilateral is a parallelogram.

If two opposite sides of a quadrilateral are parallel and congruent then the quadrilateral is a parallelogram?

False

If one pair of opposite angles of a quadrilateral is congruent then the quadrilateral is a parallelogram?

false; if both pairs

Is this statement true or falseIf one pair of opposite angles of a quadrilateral is congruent, then the quadrilateral is a parallelogram?

false

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

false

If opposite angles of a quadrilateral are supplementary is the quadrilateral a parallelogram?

No. A quadrilateral is a parallelogram when consecutiveangles are supplementary.

If a quadrilateral is a square then it is a parallelogram. A quadrilateral is a square if and only if it is a parallelogram.?

The second statement is false.

If a quadrilateral is a square then it is a parallelogram. 2. A quadrilateral is a square if and only if it is a parallelogram.?

The second statement is false.

If the diagonals of a parallelogram are congruent the parallelogram may or may not be a rectangle?

False

True or false A parallelogram is a quadrilateral in which opposite sides are perpendicular?

false

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

True

Is this statement true or falseProving that the diagonals of a quadrilateral are perpendicular will show that a quadrilateral is a parallelogram?

false

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If a quadrilateral contains three congruent sides the quadrilateral must be a parallelogram true or false?

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