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# Plane Geometry

The study of geometry can be divided into two types: Plane Geometry and Solid Geometry. Plane geometry deals with only two dimensions figures like line, rectangle, square, circle and triangle whereas solid geometry deals with 3D figures like cube, cuboid, cone and cylinder. Plane geometry contains the shapes has length and width. These figures can be drawn on a sheet of paper.

Figures mentioned above are flat and can only be drawn on paper or 2D sheet. They have two dimensions: length and breadth. Plane geometry figures are classified by their angles and shapes.

Properties of some plane figures:

• Square is a 4 sided figure with same length and four 90$^o$ angles.
• Triangle is a 3 sided figure with three straight sides and three angles.
• Circle is a round flat figure.
• Rhombus is 4 sided shape with parallel opposite sides and all the sides are the same length.
There are a number of formulas in Plane Geometry to calculate measures like area and perimeter.

Below are some formulas used in plane geometry:

 Related Calculators Graphing Inequalities on a Coordinate Plane Calculator Calculate Geometry

 More topics in  Plane Geometry Angle Point Line Plane Circle Polygon Ellipse 2d Shapes
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