A square or rectangle are the only regular polygons, but many other shapes have two right angles and two parallel lines.
Depends on the shape. A right triangle has one right angle, a rectangle has 4, an equilateral triangle has none, a circle has no angles. There are polygons with more than 4 right angles, and there is no limit on how many, but those with more than 4 are not convex.
The sum of the interior angles of any n-sided figure is (2n - 4) right angles or (180n - 360) degrees
There can be 0 to 5 right angles, or 1 to 6 obtuse angles in a hexagon.
4 right angles, no other angles.
A square and a rectangle are two of them because they both have 4 interior right angles
two, squares and rectangles
Four, because a square and a rectangle are polygons.
A square or rectangle are the only regular polygons, but many other shapes have two right angles and two parallel lines.
Depends on the shape. A right triangle has one right angle, a rectangle has 4, an equilateral triangle has none, a circle has no angles. There are polygons with more than 4 right angles, and there is no limit on how many, but those with more than 4 are not convex.
The sum of the interior angles of any n-sided figure is (2n - 4) right angles or (180n - 360) degrees
There are infinitely many quadrangles - all of which are polygons - that have sides of different length and angles that are not right angles. There is, however, no specific name for such quadrangles because there are so many different possible shapes.
They don't... They have as many sides as angles
Polygons
a square has 4 same length sides and 4 right angles. In fact there are many regular polygons that have this. Another example is an equilateral triangle.
Perpendicular lines make four 90 degree angles otherwise known as right angles.
four