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

rogerwaters
Member
Registered: 2013-11-02
Posts: 85

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

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,203

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.
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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#3 2015-11-03 05:57:17

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

Re: Transformations

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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#4 2015-11-03 06:21:54

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 104,203

Re: Transformations

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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#5 2015-11-03 20:15:59

bob bundy
Moderator
Registered: 2010-06-20
Posts: 7,566

Re: Transformations

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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