Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

Login

Username

Password

Not registered yet?

#1 2013-11-06 00:13:32

rogerwaters
Full Member

Offline

Transformations

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 2013-11-06 03:39:52

bobbym
Administrator

Offline

Re: Transformations

Hi;

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.
I have the result, but I do not yet know how to get it.
All physicists, and a good many quite respectable mathematicians are contemptuous about proof.

Board footer

Powered by FluxBB