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A parallelogram doesn't necessarily have any perpendicular sides, but it can. If it has
one single 90-degree angle, then it has four of them, and it's a rectangle.
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∙ 11y ago
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Do all parallelograms have diagonals that are perpendicular?
No.
What parallelogram's have perpendicular diagonals?
Equilateral parallelograms.
Do parallelograms have perpendicular lines?
no they don't have perpindicular lines
Parallelograms are squares is that sometimes always or never true?
Parallelograms are squares is sometimes true. Squares are parallelograms is always true. Rhomboids are parallelograms is also always true. So not all parallelograms are squares but some are.
Opposite angles of all parallelograms are always?
opposite angles of all parallelograms are always equal.
Is a parallelograms always trapezoids?
no
Is the diagonals of a parellelogram perpendicular?
That is true for some parallelograms but not all. For example, the diagonals of a rhombus, kite or square are perpendicular, but those of a rectangle or general parallelogram are not.
Do parallelograms always bisect each other?
Parallelograms do not normally bisect each other.
How often are parallelograms rectangles?
always
What is the formula for calculating area of parallelograms?
Base multiplied to the perpendicular height. A = b X h
Is a rectangle always a parallelogram?
Yes, Rectangles are always parallelograms
Are parallelograms always quadrilateral?
not always but %99.9 of the time yes
