# ppt on 2 and 3 dimensional

Views:

Category: Education

## Presentation Description

No description available.

## Presentation Transcript

### Geometry2-Dimensional & 3-Dimensional Shapes :

Geometry2-Dimensional & 3-Dimensional Shapes By: Melissa Miller

Some Helpful Definitions Shape – The outer form or outline. Polygon – A closed plane figure bounded by straight lines. Solid – A three-dimensional shape.

### 2-Dimensional Shapes :

2-Dimensional Shapes

### Circle :

Circle A Circle is a figure bound by a curved line that is equally distant from any fixed point.

### Triangle :

Triangle A Triangle is a three-sided figure with three angles.

### Parallelogram :

Parallelogram A Parallelogram is a four sided figure with parallel opposite sides. The figures parallel sides are also the same length. Can you find the parallelogram in the picture?

### Square :

Square A Square is a parallelogram with four equal sides. A Square is a polygon. A Square is also a quadrilateral.

### Rectangle :

Rectangle A Rectangle is a parallelogram with opposite sides of the same All angles are right angles.

### Pentagon :

Pentagon A Pentagon is a five-sided polygon.

### Hexagon :

Hexagon A Hexagon is a six- sided polygon.

### Heptagon :

Heptagon A Heptagon is a seven-sided polygon.

### Octagon :

Octagon An Octagon is an eight-sided polygon.

### Nonagon :

Nonagon A Nonagon is a nine-sided polygon.

### Decagon :

Decagon A Decagon is a ten-sided polygon.

### Solids(Three Dimensional Shapes) :

Solids(Three Dimensional Shapes)

### Sphere :

Sphere A Sphere is a three-dimensional figure in the shape of a circle. Every point on its surface is an equal distance from the center.

### Cylinder :

Cylinder A Cylinder is a 3-Dimensional figure with the base of a circle A Cylinder’s center moves along a straight line.

### Cube :

Cube A Cube is a 3-Dimensional figure whose faces are all squares of the same size.

### Rectangular Prism :

Rectangular Prism A Rectangular Prism is a 3-Dimensional figure with two parallel, matching bases.

### Cone :

Cone A Cone is a 3-Dimensional figure with the base of a circle.

### Pyramid :

Pyramid A Pyramid is a 3-Dimensional figure with one base and all sides are triangles. 