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#1 2013-11-05 01:13:32

Registered: 2013-11-02
Posts: 85


Hi, I need help with this transformation lesson. I'll post 5 at a time.

1. An angle changes in size as it undergoes a dilation.
A False
B True

2. A line segment usually decreases in size under contraction.
A False
B True

3. There can only be one obtuse angle in a triangle.
A False
B True

4. If a figure is reflected across the x-axis it is congruent to the original figure.
A False
B True

5. A figure derived from a previous figure by rotation, translation or dilation will be congruent to the original figure.
A False
B True

I think there are things in my story that have helped my creativity. Your father being killed, for instance, is one of the best things that could happen to a kid if he's going to write poetry or songs.
-Roger Waters


#2 2013-11-05 04:39:52

From: Bumpkinland
Registered: 2009-04-12
Posts: 87,238

Re: Transformations


1) A

2) I would say B.

3) B

4) B

5) A

In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.


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