9-6 Review

1. Give an example of something that has four planes of symmetry.

2. Give an example of a geometric figure that has only one plane of symmetry.

Quote of the Day

" People who lack confidence won't take risks. People without goals won't accomplish their dreams. That's why, if you believe in yourself, you can accomplish anything you set your mind to."

9-7 VIEWING SOLIDS AND SURFACES

WARM-UP

Sketch what you would see if you were looking down on the object from the top.

1. Television2. Merry-go-round3. Couch4. Ferris wheel5. Basketball

Views or elevations

Who uses them?? Architects use them

to help clients visualize the building being constructed.

L, R, F, & B views

Practice:

1. Draw the top view of a cylinder.

2. Draw a side view of a cone.

3. Draw the top view of a box.

4. Draw the top view of a square pyramid.

Building example P. 532

Here are three views of a prefabricated storage building made up of sections in the shape of congruent boxes.

• How many stories tall is the building?

• How many sections long is the building?

• Where is the tallest part of the building?

What things do we change from 3-d to 2-d?

• Art

• Architecture

• Maps

• CAD

• Engineering

• Movies

• Photographs

Building Plans Activity

GOALS:

To draw cubes using isometric paper

To construct a building using the base, front, and right views

To draw the constructed building using isometric paper

To develop better spatial sense using cubes