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The only quadrilaterals that always have all four right angles are the square and the rectangle.
All four angles in a quadrilateral must add up to 360 degrees.
It is possible to have non-regular quadrilaterals with one or two right angles. A quadrilateral with three right angles becomes either a square or a rectangle, because its fourth angle must also be a right angle.
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Earn +20 ptsQ: Which quadrilateral always have a 90-degree angles?
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Continue Learning about Geometry
Is the sum of the measures of the angles of a self-intersecting quadrilateral always 360 degrees?
The interior angles of a quadrilateral always add up to 360 degrees.
In which quadrilateral are the angles always congruent?
a square and a rectangle
The opposite angles of a quadrilateral in a circumscribed circle are always complimentary?
No, they are supplementary.
What quadrilateral are consecutive angles always congruent?
Square and Rectangle
Which property is always true for a quadrilateral inscribed in a circle?
opposite angles are supplementary
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