one
The opposite angles are congruent and all add to 360 degrees
A rectangle is, by definition, a parallelogram with four equal angles, all of which equal 90 degrees. If you only know three angles in a rectangle, something is wrong. In order to find the area of a rectangle, you must know its height and length. The area is then found by multiplying these two values together.
A parallelogram, or a trapezium, in which only one pair is.
A slanted rectangle is a parallelogram in the same way that a slanted square is a rhombus.
one
Well, honey, that's not a parallelogram, that's a rectangle. A parallelogram can have opposite sides equal in length and opposite angles equal in measure, but not necessarily right angles. So, in this case, you're describing a rectangle, not a parallelogram. But hey, at least you're on the right track!
You need only 1 90 degree angle.
A rectangle would fit the given description
The description given fits that of a rectangle if not a square
The opposite angles are congruent and all add to 360 degrees
A rectangle is, by definition, a parallelogram with four equal angles, all of which equal 90 degrees. If you only know three angles in a rectangle, something is wrong. In order to find the area of a rectangle, you must know its height and length. The area is then found by multiplying these two values together.
yes, as long as 2 sides are parallel, its a parallelogram.
A parallelogram, or a trapezium, in which only one pair is.
All you have to remember for this question is that opposite angles in a parallelogram are equal. So if you want to find another angle which is 57, just look at the angle directly opposite.
all four angles of any rectangle each equal 90 degrees by definition
quadrilateral, square, parallelogram, rectangle, trapezoid, etc