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Mathematics 20 Online
OpenStudy (anonymous):

See the attached image and use it to answer the following questions: 1. What is the scale factor used to dilate the figure? 2. What is the perimeter of the original figure? 3. What is the perimeter of the dilated figure? 4. How is the perimeter affected by the dilation? 5. What is the area of the original figure? 6. What is the area of the dilated figure? 7. How is the area affected by the dilation?

OpenStudy (anonymous):

OpenStudy (anonymous):

@AriPotta sorry to bother you again.

OpenStudy (anonymous):

Ok, so the scale factor

OpenStudy (anonymous):

proportions. i just want u to check

OpenStudy (anonymous):

Please?

OpenStudy (anonymous):

cb/cb' again?

OpenStudy (aripotta):

you can use any side. but sure, cb

OpenStudy (anonymous):

8/3 = 6/3?

OpenStudy (aripotta):

brb

OpenStudy (aripotta):

and it's 8/4, not 8/3

OpenStudy (anonymous):

oh. and ok.

OpenStudy (anonymous):

i can't count .

OpenStudy (anonymous):

HAHAHAHAHAH

OpenStudy (anonymous):

Or maybe it was a typo. IDK. HAHAHAAHHAHAHAHHAHAHAHAHA

OpenStudy (anonymous):

Ok, so. found it!!!

OpenStudy (anonymous):

THE SCALE FACTOR IS 2!!!!

OpenStudy (anonymous):

ISNT IT?! WOW I FOUND IT! THATS SURPRISING!

OpenStudy (anonymous):

Ok, let me write it down....

OpenStudy (anonymous):

The perimeter is 28.

OpenStudy (anonymous):

For the original.

OpenStudy (aripotta):

omg. i think we've been doing it wrong the whole time. the scale factor is 1/2

OpenStudy (anonymous):

what?

OpenStudy (anonymous):

why? how?when?where?

OpenStudy (aripotta):

who?

OpenStudy (anonymous):

lol. it was a joke.

OpenStudy (anonymous):

How did we make a mistake?

OpenStudy (aripotta):

and yea, 29 is right

OpenStudy (aripotta):

28*

OpenStudy (anonymous):

Yes. Is the scale factor wrong?

OpenStudy (aripotta):

the scale factor is 1/2 4/8

OpenStudy (aripotta):

it has to be new over original

OpenStudy (anonymous):

1/2.

OpenStudy (aripotta):

i'm sorry :c

OpenStudy (anonymous):

Oh.

OpenStudy (anonymous):

Nope, its okay.

OpenStudy (anonymous):

Uhm, 4/8.

OpenStudy (anonymous):

Hmmm.

OpenStudy (anonymous):

Okay.

OpenStudy (anonymous):

So, I'll write '1/2'.

OpenStudy (aripotta):

the perimeter should be 1/2 the original

OpenStudy (aripotta):

so that answers 4

OpenStudy (anonymous):

Oh,okay.

OpenStudy (aripotta):

and 3 would be 28/2 which is 14

OpenStudy (anonymous):

Thanks.

OpenStudy (anonymous):

So, 3 is 28/2.14.ok.

OpenStudy (aripotta):

mhmm

OpenStudy (anonymous):

done.

OpenStudy (aripotta):

can you answer the rest?

OpenStudy (anonymous):

it is 1/2 times smaller than b4?

OpenStudy (anonymous):

[for number 1?]

OpenStudy (aripotta):

no

OpenStudy (aripotta):

number one is 1/2

OpenStudy (anonymous):

Oh. [you said perimeter is 1^x]

OpenStudy (aripotta):

x^1

OpenStudy (anonymous):

Oh.

OpenStudy (anonymous):

Okay.

OpenStudy (anonymous):

lets see.....

OpenStudy (anonymous):

one second.

OpenStudy (aripotta):

area is x^2

OpenStudy (anonymous):

It is now 1/2 the size of the original?

OpenStudy (anonymous):

[I'm on number 4 now]

OpenStudy (aripotta):

yea, i already answered those lol

OpenStudy (anonymous):

Oh. WHEN?WHERE?HOW?WHO? LOL. Guess I didn't see.

OpenStudy (anonymous):

Srry. Could u retype?

OpenStudy (anonymous):

N ill leave u alone. Isn't that the best offer ever? lol

OpenStudy (aripotta):

1. 1/2 2. 28 3. 14 4. 1/2 the original

OpenStudy (aripotta):

we just gotta do the rest now

OpenStudy (anonymous):

tnx u. :)

OpenStudy (anonymous):

ok,done.

OpenStudy (anonymous):

so, 5. the area lw.

OpenStudy (anonymous):

8 x 6

OpenStudy (anonymous):

?

OpenStudy (aripotta):

...yes

OpenStudy (anonymous):

54.

OpenStudy (anonymous):

o. i can't count. darn.

OpenStudy (aripotta):

it's 48 lol

OpenStudy (anonymous):

right. thanks ! i only have the 3's times tables memorized. lol

OpenStudy (aripotta):

remember x^2 for area. so 1/2^2

OpenStudy (anonymous):

Okay. *REMEMBERS*

OpenStudy (anonymous):

Yes, I memorized the 1^x, 2^x,, and 3^x.

OpenStudy (aripotta):

x^1, x^2, and x^3

OpenStudy (anonymous):

why do i do it backwards???? dang. forgive me.

OpenStudy (anonymous):

x being the scale factor, yes?

OpenStudy (anonymous):

okie.

OpenStudy (aripotta):

yes

OpenStudy (anonymous):

tnx u

OpenStudy (aripotta):

1/2^2 = ?

OpenStudy (anonymous):

so the dilated figure;s area.

OpenStudy (anonymous):

uhm.... .25

OpenStudy (aripotta):

yea, or 1/4. so the new area should be 1/4 the original. 48/4 = ?

OpenStudy (anonymous):

12.

OpenStudy (aripotta):

there we go. we're done now

OpenStudy (anonymous):

yay! I've 2 more qs tho

OpenStudy (aripotta):

:l

OpenStudy (anonymous):

wait. 7 is 12?

OpenStudy (anonymous):

Ok, if u want, ill attempt them myself.

OpenStudy (anonymous):

go. be free!

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