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A polygon is a 2D shape with straight sides. To be a regular polygon all the sides and angles must be the same: Triangle - 3 Sides. Square - 4 Sides. Pentagon - 5 Sides. Hexagon - 6 sides. Heptagon - 7 Sides. Octagon - 8 Sides. Nonagon - 9 Sides.
- Pentagon
Start with a long strip of paper, make sure it is the same...
- 3D Shapes
Math explained in easy language, plus puzzles, games,...
- Octagon
Concave or Convex. A convex octagon has no angles pointing...
- Shape Definition
The form of an object, how it is laid out in space (not what...
- Quadrilaterals
Also opposite angles are equal (angles "A" are the same, and...
- Hexagon
Properties. A regular hexagon has:. Interior Angles of 120°;...
- About Math is Fun
You are welcome to do the same. Our Commitment. The site...
- Triangle
How to remember? Alphabetically they go 3, 2, none:...
- Pentagon
- Overview
- Definition
- Types
- Circle Shape
- Triangle
- Square
- Rectangle
- Pentagon
This article is about the explanation of different types of 2D Shapes like Circle, Triangle, Square etc., along with their properties and comparison between 2D & 3D Shapes.
In maths, 2d shapes are defined as plane figures that can be drawn on a flat surface or piece of paper. They have various parameters such as area and perimeter. Some contain sides and corners while others have curved boundaries.
The basic types of 2d shapes include circle, triangle, square, rectangle, pentagon, octagon etc. Polygons with equal sides and angles are called regular polyggons while the circle is a non-polygon shape with a curved boundary.
A circle is a closed figure in which all points in the plane are equidistant from the center point; it has radius length from center to outer line; examples include wheels and pizzas.
A triangle is three-sided polygon (2D shape) with three edges & vertices; sum of its angles = 180°; example - pyramids .
A square is four-sided polygon (2D shape) whose sides & angles are equal in length & 90° respectively ; diagonals bisect each other at 90° ; examples - wall or table .
A rectangle has 4 sides where opposite sides are equal & parallel to each other with all angles being 90° ; examples - brick , TV , cardboard .
A pentagon is five sided polygon (2D shape) that can be regular/irregular ; interior angle = 108° for regular pentagons ; exterior angle = 72° for regular pentagons ; 5 diagonals exist .
Polygons are 2D shapes made from straight lines that meet at points called vertices. There are two different types of polygons. Regular polygons. Irregular polygons. Regular polygons have equal side. lengths and equal interior angles. Interior angles are the angles. inside the polygon.
A 2D shape has no thickness or depth. Example 3: Match the 2D shape with its property. (i) It has no corners and edges. (ii) It has one pair of opposite sides parallel to each other while the other two sides are non-parallel. (iii) It is a closed figure with three straight sides. (iv) Each of its angles measures 90°.
Aug 16, 2024 · Properties of 2D Shapes. 1. Circle. A circle is a perfectly round shape characterized by all points on the perimeter being equidistant from a single point in the center. Circles are unique among 2D shapes in having no straight edges or vertices. They are known for their infinite lines of symmetry.
In second grade, students are taking classifying 2D shapes one step further, recognizing and drawing shapes with specific attributes, including triangles, quadrilaterals, pentagons, and hexagons. At this stage, they begin to realize that shapes can fit into multiple categories. For example, they are already familiar with shapes like squares and ...
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2D Shapes. A 2D shape is a flat shape that has only two dimensions - length and width, with no thickness or depth, that is the reason why it is called a two-dimensional shape. For example, a sheet of paper is two-dimensional in shape. It consists of a length and a width but does not have any depth or height. Some common 2D shapes are squares ...
