My problem is attached, Thanks!

Here,

two triangles ABC and abc I think Aa and Bb and Cc lines converge in center of dilation

ratio is ab/AB =ac/AC =bc/BC

Thanks, what does it mean by scale the factor of the dilation?

A scale factor is a number which scales, or multiplies, some quantity. In the equation y=Cx, C is the scale factor for x. C is also the coefficient of x, and may be called the constant of proportionality of y to x. For example, doubling distances corresponds to a scale factor of 2 for distance, while cutting a cake in half results in pieces with a scale factor of ½.

okay, and did you find the center?

let me see again the diagram plz

Its at the top.

please chek my nums: A(-6,0) ,a(-2,0) B(6,-6) , b(2,-2) Aa: y=0

Bb: m=-1 y+2=-1(x-2) y=-x-4

they are correct

-x-4=0: x=-4 (-4,0) it,s not true!

is it?

hhmm... not too sure either

my x component is wrong. why?

I don't know what to tell ya. You were on a roll!

y=-x-4 is false! y=-x. do you agree?

so -x=0 x=0 (0,0)

I can't tell you I agree. This is a problem from way back, and I've forgotten all of the mechanics. I think your on to something though. Or at least I hope... lol

I hve forgotten too :)

haha! Thanks for trying though!

sorry if i could not help u:)

No problem, I'll try re-posting later!

The problem i have is with the drawing. You have to guess the locations as the points are not expressed like (x,y)

ya that sucks

like the two lines that converge on the negative x axis a guess would be -6 but that would be just a guess.

The vertical line that is the base of the large triangle looks to have a segment of the line x=6, but I am not sure.

I think 6 is the point for both of those.

You would think they would of stated it so, rather than leave a student guessing. The diagram appears to me that the triangles are skewed a little bit so that the x axis does not go through the midpoint of the larger triangles base.

Tell me about it! Thanks for your sympathy.

Sorry but that is all I can offer! Like you say maybe a reposting and someone like satellite, amister or polpak will see it.

Thanks! I will try that.

this one eh?

yes!!!

do we have any option to choose from? as in multiple choices?

Sadly no, I have show my work.

this is what I assume the points to be

looks good

id have to look up what 'scale dilution' means, but I think its just the scaled factor; find the distances of each line segment

12 4 --- as --- ; is a scale of 1:3 if i see it right 3 1

but the dilution is not centered to the bigger tri, so let me look into that

scale is either 1:3 or 3:1 that i see, does that make sense? the center of the dilution is the points where the lines cross from angle to midsection ..

Do you think I would need to park the spot like with the paint tool?

determine the equations of 2 of those lines; and see where they match up

(-2,0) (2, -1/2) is one line (2,1) (0,1) appears to be the other

slope = -1/8 y-0 = -1/8(x-(-2)) y = (-1/8)x - (1/4)

(2,1) -(0,-1) ------ 2,2 ; slope = y/x = 1 y-1 = x -2 y = x-1 is the other equation

when: x-1 = (-1/8)x - (1/4) we have the center of the diulted triangle right?

x + (1/8)x = (-1/4) +1 9/8 x = 3/4 x = 8(3)/9(4) = 2(1)/3(1) = 3/2 y = (2/3) -1 = 2/3 - 3/3 = -1/3 the center appears to be at: \[(\frac{3}{2},-\frac{1}{3})\]

Wow. First off my apologies, secondly a huge round of plausible! Thank you so much, I had no idea. One little question before you go: How do you find the area of a circle in pi when your given the entire diameter?

Area and Circumference have a radius in common; and Radius = half the diameter

applause*

Area = pi r^2

was my diluted tri correct? :)

I'm not really sure! But again, so i divide the diameter in half, and then what?

(d/2)^2 * pi

if diam = 10; then Area = (10/2)^2 pi = 25 pi

Got it! thank you so, so, so much!

Thanks amistre64, I was lost without the points be given.

:) i had to assume points as well

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