boxes and sketches

boxes and sketches

On visualization of 3-dimentional shapes ,they can be represented on paper.(2 dimensional)



3D SHAPES

Three-dimensional shapes

In geometry, a three-dimensional shape can be defined as a solid figure or an object or shape that has three dimensions – length, width and height. Unlike two-dimensional shapes, three-dimensional shapes have thickness or depth.

Common 3D Shapes

Sphere. Torus. Cylinder. Cone. Cube. Cuboid. Triangular Pyramid. Square Pyramid. ETC

Multiple Choice

WHAT 3D SHAPE HAS ONE FACE?

• Sphere

• cone

• cylinder

• pyramid

CUBE

a symmetrical three-dimensional shape, either solid or hollow, contained by six equal squares.A cube has six equal, square-shaped sides. Cubes also have eight vertices (corners) and twelve edges, all the same length. The angles in a cube are all right angles. Objects that are cube-shaped include building blocks and dice.

Multiple Select

which of the following is a cube

• dice

• ball

• birthday hat

• rubix cube

• crackers

explanation:-

a ball is a sphere ,birthday hat is cone shaped and crackers are mostly cylinder shaped

nets

A cube consists of six square faces, twelve edges, and eight vertices. When the square faces of a cube are separated at the edges and laid out flat they make a two dimensional figure called a net. ... Net -- a two-dimensional shape that can be folded into a three-dimensional figure is a net of that figure.

Multiple Choice

will a net with 5 faces make an open box or a closed box.

• open box

• closed box

• it depends on the way we fold it

• can't be determined

floor maps

in architecture and building engineering, a floor map is a drawing to scale, showing a view from above, of the relationships between rooms, spaces, traffic patterns, and other physical features at one level of a structure. Dimensions are usually drawn between the walls to specify room sizes and wall lengths.

deep drawing

From the floor map we cannot make out what the house really looks like or how high the windows are. So we look for a special way of drawing the house which is deep - to show the length, width and height.

example of floor map

example of deep drawing