Well, first of all triangles can't be quadrilaterals because qaud means four and tri means 3. A triangle is a polygon. A triangle can not have any less or any more than 3 sides, but not all of them have to be the same length, so therefor it can defenitally not be a quadrilateral because it only has 3 sides and it doesn't have to be equal on all of the sides.
Rhombus
A square
The reguar polygons are triangles, quadrilaterals and hexagons.
Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.Most triangles, quadrilaterals, and other polygons with five or more sides; most closed shapes with curved sides.
triangles, quadrilaterals, circles...
Quadrilaterals, which have 4 sides, are not the same as triangles which have 3 sides. Some similarity exists in that both are geometrical figures.
Quadrilaterals are polygons with four sides. Triangles are polygons with three sides.
Not true because all quadrilaterals contain 2 triangles
No because all triangles have only 3 sides whereas quadrilaterals have 4 sides.
Quadrilaterals, pentagons, triangles, octagons, hexagons, decagons.
They are both polygons.
In general, no.
A triangle is not a quadrilateral. A quadrilateral consists of four sides, and a triangle only has three.
Rhombus
Yes
No. Although for some 2-dimensional figures - some triangles and quadrilaterals - the term may be used in that way.
A square