A rectangle has four angles of 90° each, also known as right angles. The special case is the square, which is a rectangle with four equal sides.
No, only in a square (regular parallelogram).The opposite angles are EQUAL in a parallelogram, and the adjacent angles are SUPPLEMENTARY(they equal 180 degrees).So if any angle in a parallelogram is a right angle, they all are. Otherwise, there are no right angles.The angles of a parallelogram will average 90 degrees, as there are 360 degrees in any quadrilateral, (360/4 - 90) and 180 degrees in two adjacent non-equal angles (180/2 = 90).
Not necessarily. A parallelogram is a quadrilateral with 2 sets of 2 parallel sides. Only rectangles and squares have right angles as all four angles - a rectangle is a "special" parallelogram that has all four angles equal; a square is a "special" rectangle that has all four sides of equal length.
No, not necessarily. A parallelogram can have all sides equal, but still not be a square.
The opposite angles of a parallelogram are equal so math up the opposite angles.
In a parallelogram consecutive angles are always supplementary. This means they equal 180.
Not unless all angles are also equal. A rhombus is a parallelogram with all sides equal. A rectangle is a parallelogram with all angles equal. A square is a rhombus with all angles equal which is a parallelogram with all sides equal and all angles equal.
They can, but usually they are not. All the angles will be equal only if your parallelogram is a rectangle.
All the angles in a parallelogram can be equal, but are not always.
No. A rhombus is a parallelogram with all equal sides. A parallelogram with all equal angles is a rectangle (which might also be a rhombus and a square).
This would be a square. A rhombus is a parallelogram with all sides equal. A square is a rhombus with all angles equal (to 90°)
Diagonally opposite pairs of angles will always be equal, but the only time all angles in a quadrilateral parallelogram are equal is when that shape is a rectangle.
a parallelogram has two pairs of equal angles
A rhombus is a special case of a parallelogram, where all sides are equal length. A rhombus and a parallelogram have the opposite vertices are equal angles, but adjacent angles are not necessarily equal.
a square
360 degrees
If you add the values of all four angles in a parallelogram together, the total will be 360 degrees.
A rhombus has all sides equal but not angles. The opposite angles in a rhombus are equal though.