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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.
8
The 4 vertices of a rhombus contains no right angles but its diagonals are perpendicular to each other thus creating 4 right angles
The most basic answer would be a square, which is both symmetrical and regular. However, rectangles are also symmetrical, as are hexagons with two opposing 90° angles and four matching 135° angles. In fact, the number of potential shapes are infinite, unless you specify exactly how many right angles the shape must have.
A rhombus is a quadrilateral having 4 equal sides and no right angles
i don,t know
A quadrilateral has four angles. The sum of the interior angles in a quadrilateral is always 360 degrees. Each angle can vary in size, but they collectively must add up to this total. Examples of quadrilaterals include squares, rectangles, trapezoids, and rhombuses.
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).