90 degrees.
A regular quadrilateral is a square and each angle is 90 degrees (i.e. a right angle).
90 degrees.
90 degrees
Each exterior angle of a square is 90 degrees and a square is a regular 4 sided quadrilateral
90 degrees.
A regular quadrilateral is a square. As to the measure, the answer depends on the measure of WHAT? An angle, a side, the diagonal, area, perimeter, etc.
A regular quadrilateral is a square and each angle is 90 degrees (i.e. a right angle).
90 degrees
90 degrees.
90 degrees
The sum of the exterior angles of a polygon equals 360.Quadrilateral has 4 exterior angles.360/4=90 for a regular quadrilateral.
it's 90 degrees
-- Rhombus -- Regular parallelogram
Each exterior angle of a square is 90 degrees and a square is a regular 4 sided quadrilateral
90 degrees. Exterior angle of any regular n-sided polygon is 360/n degrees
A regular quadrilateral has 4 angle and their sum must be 360 degrees by the general formula 180 degrees (n-2) for the number of angle in an n sided polygon. So there are 180(4-2)=360 degrees. Since it is regular this means each angle is 360/4=90 degrees.