Question

Triangle DEF is shown below with line GH passing through the center. Imagine triangle DEF was dilated by a scale factor of two about the center of the triangle, and a line was drawn passing through its center. What would you know about the line of the dilated figure as compared to line GH drawn below?

Answer 1

http://gyazo.com/0cca2d0e00e478b5055b7263ad1ba5c3

Answer 2

@bibby

Answer 3

How do you create an account for gyazo? I downloaded it and it said I needed to download an application or something?

Answer 4

you don't need to. the problem is with her link

Answer 5

.-. It's the same way as you would with Lightshot.

Answer 6

OH WRONG LINK THATS WHY

Answer 7

http://gyazo.com/af88c8e5d5345696bbc40c3ca061d5c7

Answer 8

if we dilate the triangle by a factor of 2 about the center, the point remains the same.

the line would stay/be the same as GH

Answer 9

so what does that mean?

Answer 10

the line wouldnt change

Answer 11

so is that the explaination of it?

Answer 12

I'm not sure how to properly phrase it. basically. if you're dilating the whole triangle by a factor of 2 around the center, the center never changes as far as I can tell, thus the line going t hrough the midpoint remains the same

Answer 13

the center being (0,0) in both triangles

Answer 14

I already sumbitted but ty. c: I'll see what I'll get

Answer 15

I'm feeling a C

Answer 16

there aren't any options.

Answer 17

I meant the grade

Answer 18

Actually. I got an F. loool a 50.

Answer 19

unfortunate. I wonder if the ones we did together were all wrong D:

Answer 20

lemme check

Answer 21

one of them was right. still gotta wait for the essay to be graded. it's 16 points.

Answer 22

I'm going to assume the parallelogram one was right. pretty confident about it. g ood luck cx

Answer 23

it was. and there was another one too.

Answer 24

Here's a graph of it. As you can see the line doesn't change. The line still goes through the centroid of the triangle.