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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).
Most of the time, rhombuses have no right angles, but a square is also a rhombus, so if it was a sqare, then there would be four right angles, but it will most likely be none.
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The 4 vertices of a rhombus contains no right angles but its diagonals are perpendicular to each other thus creating 4 right angles
A rhombus is a quadrilateral having 4 equal sides and no right angles
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.
i don,t know
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
All rhombuses have two pairs of congruent angles (opposite angles are congruent to one another - a square is a special case type of rhombus in which all four angles are congruent).
There are 4 90degree angles in a rectangul