Four per square, four per rectangle.
8
28
i don,t know
Certain quadrilaterals have right angles. Right trapezoids are the most general example. Rectangles are specialized right trapezoids, and squares are specialized rectangles. There may be more but I can't recall them. Many rhombuses and parallelograms have no right angles. However, they might (and then you'd probably call them squares or rectangles but they are also technically rhombuses, parallelograms and trapezoids).
16 - four in each !
Generally, there are no right angles in a parallelogram, but rectangles and squares can be seen as special parallelograms, as they have all the qualities needed to be classed as parallelograms, and in addition, they have four right angles.
two, squares and rectangles
There are 4 90degree angles in a rectangul
16
It's got 4 of them.
Rectangles, squares, and rhombuses are shapes that have right angles and are symmetrical. These shapes have equal sides and opposite angles that are congruent, making them symmetrical across their axes. The right angles in these shapes are formed when two lines intersect at a 90-degree angle.
All rectangles are irregular and each has four equal angles.