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Can all rectangles have right angles?
They can, they do, they have to.
Do some rectangles have no right angle?
No, all four angles with in a rectangle are right angles.
What parallelogram has no right angles?
All of them, except rectangles. (Rectangles are special parallelograms.)
When are parallelograms rectangles?
When the corner angles are right-angles (90 degrees)
What parallelogram has a right angle?
Rectangles are parallelograms with right angles.
All rectangles have four right what?
Rectangles have four sides and four angles.
Does a quadrilateral have any right angles?
It can.Quadrilateral means "four sides", and squares and rectangles do have right angles. Rhombuses are quadrilaterals, but do not have right angles.
What is the counterexample for all parallelograms are rectangles?
any parallelogram that does not have right angles.
Which parallelogram has no right angles?
Except for rectangles, no parallelogram has right angles.
Do rectangles have no right angles?
False
Can all rectangles have right angles?
They can, they do, they have to.
Are rectangles always squares?
No. Although squares are always rectangles, rectangles are not always squares. A square has four sides of equal length and four right angles. Rectangles must only have four right angles.
Do some rectangles have no right angle?
No, all four angles with in a rectangle are right angles.
Can a rectangle be a square explain?
a rectangle has 4 right angles. A rhombus has four congruent sides. A square has four right angles and four congruent sides. All squares are rectangles because all rectangles have 4 right angles, and all squares have four right angles. But not all rectangles are squares because not all rectangles have congruent sides.
What parallelogram has no right angles?
All of them, except rectangles. (Rectangles are special parallelograms.)
What has the rectangles have that the parallelogram does not have?
4 right angles
When are parallelograms rectangles?
When the corner angles are right-angles (90 degrees)
