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Mathematics 15 Online
OpenStudy (dreamsawakes):

NEED HELP REALLY BAD ;-; Prove that the two circles shown below are similar.

OpenStudy (dreamsawakes):

OpenStudy (dreamsawakes):

I know the big circle radius is four and the small radius is 2 but how do I prove they're similar

OpenStudy (zzr0ck3r):

move the big one to the left 8 units and down 1 units and multiply the radius by 1/2

OpenStudy (dreamsawakes):

@zzr0ck3r Is that just it?

OpenStudy (asad786):

@jim_thompson5910

OpenStudy (asad786):

is the graph any bigger?

OpenStudy (dreamsawakes):

No :/

OpenStudy (asad786):

then how cqn you move it to the left 8 units

OpenStudy (dreamsawakes):

He meant right

OpenStudy (asad786):

oh

OpenStudy (dreamsawakes):

I think I know how to word it, can you tell me if what I said sounds good?

OpenStudy (asad786):

is there answer choices

OpenStudy (dreamsawakes):

No I have to explain why they're similar

OpenStudy (asad786):

oh i see

OpenStudy (dreamsawakes):

Circle B has the Radius of 4 while circle D has the radius of 2. If you move Circle B 8 units to the right then 1 unit down, you'll get them in the same place. Afterwards, multiply the radius of circle B by 1/2 and you will get the radius of circle D...this is how we know they're similar.

OpenStudy (dreamsawakes):

does that sound good?

OpenStudy (zzr0ck3r):

talk about the center, when you say they are in the same place

OpenStudy (asad786):

yeah nice

OpenStudy (asad786):

what grade are you in

OpenStudy (zzr0ck3r):

I did mean right, but just to be clear @Asad786 we could for sure move it 8 units to the left of 500000000 units to the left. We just make the viewing windows bigger. Graphs go on forever, we just are shown a small window.

OpenStudy (asad786):

oh ok im only in 8th grade so i dont know much of high school

OpenStudy (zzr0ck3r):

I just thought I would mention it because it is sort of mind blowing :)

OpenStudy (asad786):

@zzr0ck3r what are corresponding angles

OpenStudy (zzr0ck3r):

for what?

OpenStudy (asad786):

need help on question thats why

OpenStudy (dreamsawakes):

Corresponding angles that occupy the same relative position at each intersection where a straight line crosses two others. If the two lines are parallel, the corresponding angles are equal.

OpenStudy (asad786):

http://prntscr.com/b8ygwt

OpenStudy (zzr0ck3r):

im lost

OpenStudy (zzr0ck3r):

oh sorry, I thought you asked "what are THE corresponding angles"

OpenStudy (asad786):

oh srry

OpenStudy (dreamsawakes):

What do you think?

OpenStudy (asad786):

i think c

OpenStudy (dreamsawakes):

What angles look like this?

OpenStudy (dreamsawakes):

C is vertical angle btw

OpenStudy (asad786):

so d

OpenStudy (dreamsawakes):

Correct!

OpenStudy (asad786):

thx i have 2 more

OpenStudy (asad786):

could you help me ill put on new page

OpenStudy (dreamsawakes):

Sure.

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