ppt on 2 and 3 dimensional

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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. 