Question

Can I have someone's opinion Its a very easy question. I just want to know if i got everything down.

Answer 1

@wolfe8

Answer 2

@hartnn

Answer 3

Are the two figures below similar? Explain why or why not using complete sentences. Provide evidence to support your claims.

Answer 4

Hello, using the same answer as the last one. This time we can use SSS postulate.

"SSS in same proportion (side side side)
All three pairs of corresponding sides are in the same proportion"

So in order to prove, you must calculate the length of each side

For example, I calculate AF = |-4 - (-1) | = 3, GL = | 2 - 4 | = 2. Then you have the base ratio AF/GL = 3/2.

B(-3,0), A(-4,-2) ==> \[AB = \sqrt{(-4-(-3))^2+(0-2)^2} = \sqrt{1^2+2^2} = \sqrt{5}\]

Similarly, \[HG = \sqrt{2}\]
Then ratio AB/HG = \[\frac{ \sqrt{5} }{ \sqrt{2} } = \frac{ 5 }{ 2 }\]

You need all of side is at the same ratio = 5/2 so you must calculate the rest one.

Good luck.

Answer 5

@wolfe8

Answer 6

@wolf1728

Answer 7

@someoneelse

Answer 8

@chenping

Answer 9

Haha, well. I'm not sure as I have left Modern Math so long ago.. :P
All I remembered is that transformation. Try joining all 8 points corresponding, you will find an origin point for the transformation (damn, I 4got the term..).
So, I think that they are similar but also different :P Confused right?
They are similar because the left 1 is actually just a transformation of the right 1. Yet, they are different in terms of scale. It's x2 scale.
Haha, hope this may help :P

Answer 10

I'll look for a similar question I helped with a few days ago

Answer 11

http://openstudy.com/users/adrynicoleb#/updates/52b39b73e4b03e81ff9596b5 Hope that helps.

Answer 12

Look at the angles - do the angles look like they're all exactly the same size in both figures?

Answer 13

For example: Is angle JKL exactly the same size as angle DEF?

Answer 14

one reason will be enough for proving that they are not similar, look at distances\[\frac{CD}{IJ} \neq \frac{DF}{JL}\]

Answer 15

another reasoning comes from what agent0smith mentioned above