Head First 2D Geometry

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similarity and congruence

Head First: Do you get a lot of pleasure out of

saving people so much work? It must be nice to be

liked.

Similarity: I do. It’s why I do what I do, really. I’m

a real stickler for recycling and conserving energy.

Head First: You mean like saving water?

Similarity: I mean like saving brain power! With

similarity, you can do a calculation once and then

reuse it over and over.

Head First: Oh, I see! Sorry…yes. So, what’s the

next step for you in your career?

Similarity: Well, really for me the next step is

increasing recognition. I need people to know that

I’m out here, waiting to get involved in saving them

time and energy.

Head First: Well, that’s certainly something we’d

love to help you with. Thanks for the quick interview.

Similarity Exposed

This week’s interview:

Similarity—faster or smarter—

which are you?

You sketch it—we’ll etch it!

Now that you’ve figured out all of those missing angles, you’ve

calculated everything that’s needed to etch the design.

Here’s my phone.

I can’t wait to see

how it turns out.

Liz’s shiny

new phone