### Alice in wonderland to Car Rims to the Overhead Projector . . .

Tribond time.

>Alice in wonderland0

>Car Rims

>Overhead Projector

answer?

Dilatations.

Dilatations are the transformations of shapes by making them BIGGER or smaller.

The text book Glossary puts it in a more simple way. The transformation that changes the size of an object.

Out of all honesty *sounds like something Uyen would say* , I find this a teensy bit easier than Rotations. Because, unlike Rotations. This concept uses a Mapping rule.

and that mapping rule is . . .

( x, y) ▬▬▬► ( kx , ky )

"k" being that SCALE factor

simply put the number of time you multiply the x & y coordinates by to get (x , y) Primed

Let's say we have

[ ▲xyz ]

and the coordinates for the triangle were

[x] = (-2 , 8)

[y] = ( 6 , 2)

[z] = ( 4, -2)

and the scale factor is " 2 " or we want it TWICE as BIG

we multiply the X & Y by 2. so the coordinates for [ ▲xyz '] is . . .

[x'] = (-4 , 16)

[y'] = (12 , 4)

[z'] = ( 8 , -4)

try it on a grid . . .

[ ▲xyz ] is twice the size of [ ▲xyz ']

well, that's it for me. i gotta finish my map of atlantis. TAKE CARE ALL!!

KEEP IT RAWKING!

## 3 Comments:

Huh! Alice and the Wonderland!?!

I love the tribond. Excellent connections within the topic.

yepp... alice in wonderland... see in the story, she chages shape like 3 times if im not mistaken. and dilatations is the changing of size..

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