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**rogerwaters****Member**- 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

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,718

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.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**Lpravia020614****Member**- Registered: 2015-11-03
- Posts: 35

Hi;

I am working on the same thing and its asking for reasons as to why these are True or False.

can someone please help. I got the answers stating true or false but I cannot figure out why.

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**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 104,718

Hi;

Which questions?

I am working on the same thing

Please show your workings.

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.** **A number by itself is useful, but it is far more useful to know how accurate or certain that number is.**

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**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,613

hi Lpravia020614

Welcome to the forum.

Have a look here:

http://www.mathsisfun.com/geometry/transformations.html

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

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