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To determine if a quadrilateral is a parallelogram, you need to show that either pairs of opposite sides are equal in length, or that pairs of opposite angles are equal, or that the diagonals bisect each other. Alternatively, if both pairs of opposite sides are parallel, it also confirms that the quadrilateral is a parallelogram. Any one of these conditions is sufficient to classify the quadrilateral as a parallelogram.
What else can I help you with?
Which quadrillateral is a parallelogram with 4 congruent sides and no right angles?
A non-square rhombus is.
Is every quadrillateral a rectangle?
Well, think for a moment. (You can do it !) Try and picture a kite, a parallelogram, a trapezoid, and a rhombus. They're all quadrilaterals, but none of them is a rectangle.
If a quadrillateral has four congruent sides and its diagonals are congruent then the quadrillateral is what?
square
To make sure that a parallelogram is a rectangle atleast how many of its angles must measure 90 degrees?
one or 1
In this parallelogram the measure of b exceeds the measure of a What is the measure of d?
In a parallelogram adjacent angles are supplementary, so angles are 75 degrees (A & C) and 105 degrees (B & D).
Is a parallelogram a quadrillateral?
Yes a parallelogram is a 4 sided quadrilateral.
What is quadrillateral that is not a parallelogram?
an irregular rectangle
Is a parallelogram always a quadrillateral?
yes
What quadrillateral is not a parallelogram?
A kite is one of them
Which quadrillateral is a parallelogram with 4 congruent sides and no right angles?
A non-square rhombus is.
What measure of a will make this quadrilateral a parallelogram?
123
What measure of angle a will make this quadrilateral a parallelogram?
360
Is every quadrillateral a rectangle?
Well, think for a moment. (You can do it !) Try and picture a kite, a parallelogram, a trapezoid, and a rhombus. They're all quadrilaterals, but none of them is a rectangle.
A quadrilateral with opposite sides parallel?
Parallelogramwhat quadrillateral has parallel sides that are the same length; no right anglesA quadrilateral whose opposite sides are parallel is a rectangle.* * * * *A rectangle is a special case. The more general answer is a parallelogram.It's a Parallelogram
If a quadrillateral has four congruent sides and its diagonals are congruent then the quadrillateral is what?
square
In this parallelogram the measure of b is twice the measure of aWhat is the measure of a?
60
In this parallelogram the measure of b is twice the measure of a what is the measure of b?
120
