They are closed plane figures bounded by straight lines.
Quadrilaterals are polygons with four sides. Triangles are polygons with three sides.
No because all triangles have only 3 sides whereas quadrilaterals have 4 sides.
Quadrilaterals, which have 4 sides, are not the same as triangles which have 3 sides. Some similarity exists in that both are geometrical figures.
In general, no.
Rhombus
Yes
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.
No, because the fact that tri means "three" and quad means "four", it's highly impossible for a triangle to be a quadrilateral. Triangles only have 3 sides to them while quadrilaterals have 4.
Not true because all quadrilaterals contain 2 triangles