All plane figures that have 3 sides are triangles (tri means 3). There are different triangles based on if all 3 sides are the same length, 2 sides the same, or none. If none are the same lengths, that Is a scalene triangle.
A three sided closed plane figure (shape) is a triangle.
A Scalene Triangle
A plane figure cannot be bounded by only one straight line. If the shape is bounded by lines which are not straight or by several straight lines the answer will depend on exactly what these are.
it is a plane shape because you said its a square
parallelogram
It is usually a plane shape that forms a boundary of the figure..It is usually a plane shape that forms a boundary of the figure..It is usually a plane shape that forms a boundary of the figure..It is usually a plane shape that forms a boundary of the figure..
quadrilateral
irregular quadrilateral
A three sided closed plane figure (shape) is a triangle.
A rectangle. Think about it.
A trapezoid is a 4 sided shape that has one pair of parallel sides of different lenghts
A flat shape.
A two-dimensional figure, also called a plane or planar figure, is a set of line segments or sides and curve segments or arcs, all lying in a single plane. The sides and arcs are called the edges of the figure. The edges are one-dimensional, but they lie in the plane, which is two-dimensional. The triangle, the pentagon, the hexagon and the circle are just a few plane figures. Prisms and pyramids, for instance, are three-dimension figures.
A Scalene Triangle
A twelve-sided plane figure is called a dodecagon.
a solid figure with five plane surfaces
a face