Question

the dashed figure is a dilation of the origional. find scale factor classify as enlargement or reduction.

Answer 1

So if the dashed figure is a dilation of the solid figure, is it an enlargement or reduction?

Answer 2

enlargement.

Answer 3

yes.

Answer 4

Now, lets get the scale factor. You work on it, and see if you can do this first/

Answer 5

ok.

Answer 6

an enlargement of 3?

Answer 7

one sec..let me see.

Answer 8

either 3 or 2 I swear...

Answer 9

It's not a fair question..as it is hard to count the dots..but it looks more 3 than 2. So I would give you credit.

Answer 10

yay ok here's your medal.

Answer 11

I didnt help you for the medal. I dont need it. I helped you becuase I wanted you to learn about a dilation.

Answer 12

aww ok thanks :)

Answer 13

can you supervise me do 1 more?

Answer 14

Welcome.

Answer 15

thanks

Answer 16

so, if you want to supervise as I do 1 more it would be xtra helpful.

Answer 17

in a new question

Answer 18

OK. I'll look at the next one.

But, something important must be noted before we move on.

Answer 19

whats up?

Answer 20

is it about the terms of use?

Answer 21

If we have the coordinates of three vertices of a triangle and double all the coordinates, then the length of each new side will be twice the length of the original triangle.

That means that the perimeter of the new triangle will be twice the perimeter of the original triangle. That makes sense because perimeter is defined as the total distance of all three sides. So we expect it to be twice the perimeter than the original triangle.

HOWEVER, the area will NOT be twice the area of the original triangle.

If the scale factor is 2:1, then the ratio of the area will be 2^2:1^2 or 4:1. So for the area, scale factor is found by squaring the scale factor of distance or perimeter.

Answer 22

That's an important concept in dilation problems.

Answer 23

ooooohhh now I think I got it. let's look at the next Q.

Answer 24

Now you can post a new problem you wanted to do.