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Such a figure is called a square. Actually only one right angle is enough to force the
the other angles to be right, and if three sides are equal, that forces all sides in
such a figure to be equal.
Exercise: Prove that any 4-sided figure( called a quadrilateral in math books) with three equal sides and one right angle is a square.
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A parallelogram with four right angles with sides different in length and width?
a parallelogram with four right angles with sides different in length and width is That would be a rectangle. - HistoryDork
Is all sides of a rectangle the same length?
They can be, but they do not have to be. A rectangle has 4 sides and 4 right angles. Which means a square, which is a type of rectangle, would have 4 of the same length sides.
A parallelogram with 4 right angles and with sides different in length and width?
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!
Which quadrilaterel has 4 right angles and opposite sides of equal length?
A Rectangle.
What figure has four right angles and all sides are not the same in length?
A rectangle.
