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Mathematics 18 Online
OpenStudy (julyah1):

Kyra is using rectangular tiles of two types for a floor design. A tile of each type is shown below: Two rectangular tiles, rectangle PQRS with vertices at P(1, 1), Q(8, 1), R(8, 5), and S(1, 5). Rectangle JKLM with vertices J(4, 1) , K(8, 1), L(8, 4) and M(4, 4) Which statement is correct? The two tiles are not similar because segment SP is to segment SR is 4 : 7 and segment MJ is to segment ML is 1 : 3. The two tiles are similar because segment PQ is to segment QR is 4 : 3 and segment JK is to segment KL is also 4 : 3. The two tiles are similar because segment SR is to segment

OpenStudy (julyah1):

@DanJS please help

OpenStudy (518nad):

draw these 2 rectangles out

OpenStudy (julyah1):

OpenStudy (julyah1):

thats the triangles

OpenStudy (518nad):

okay now the ratios of sides are equal of its similiar rectangles

OpenStudy (518nad):

so SP:SR has to be equal to MJ : ML

OpenStudy (518nad):

can u tell me the lengths of SP,SR,MJ,ML in that order

OpenStudy (julyah1):

If it has to be equal to MJ, then is the answer A?

OpenStudy (518nad):

the ratios hace to be equal not the side lengths

OpenStudy (518nad):

go ahead and tell me the lengths of the sides now

OpenStudy (518nad):

lengths of SP,SR,MJ,ML in that order

OpenStudy (julyah1):

(1,5) (1,1), (1,5) (8,5), (4,4) (4,1), (4,4) (8,4) I think. Im really not good that this stuff. :/

OpenStudy (518nad):

its okay, take yur time

OpenStudy (julyah1):

at*

OpenStudy (518nad):

lets look at length of SP okay

OpenStudy (julyah1):

ok

OpenStudy (julyah1):

(1,5) and (1,1)?

OpenStudy (518nad):

yep okay, so what was the change in x and change in y

OpenStudy (julyah1):

you mean like it changed from 5 to 1?

OpenStudy (518nad):

yes so the first values are x, and the 2nd values are y

OpenStudy (julyah1):

yes

OpenStudy (518nad):

okay so ill help u (1,5) -- > (1,1) the x change by 0 units the y changed by 4 units

OpenStudy (518nad):

so the length of this line is jsut 4

OpenStudy (julyah1):

right because it went fro 5 to 1 so obviously 4 lol i should've known that

OpenStudy (518nad):

lol its okay :)

OpenStudy (518nad):

try to see if u can tell me the lenghts of the other 3

OpenStudy (julyah1):

ok so next is (1,5) and (8,5) so the x changed by 7 units and the y changed by 0 units?

OpenStudy (518nad):

right so what is this length of the line

OpenStudy (julyah1):

7

OpenStudy (518nad):

yup now the other 2

OpenStudy (julyah1):

the other length is 3

OpenStudy (julyah1):

and then the last length is 4

OpenStudy (518nad):

yup so the ratio of SP:SR is 4:7 the ratio of MJ:ML is ?

OpenStudy (julyah1):

(these are the answers i left the last answer choice out lol sorry) The two tiles are not similar because segment SP is to segment SR is 4 : 7 and segment MJ is to segment ML is 1 : 3. The two tiles are similar because segment PQ is to segment QR is 4 : 3 and segment JK is to segment KL is also 4 : 3. The two tiles are similar because segment SR is to segment ML is 7 : 4 and segment PQ is to segment JK is also 7 : 4. The two tiles are not similar because segment PQ is to segment QR is 7 : 4 and segment JK is to segment KL is 4 : 3.

OpenStudy (518nad):

mhm

OpenStudy (518nad):

its the last one, its for the reason u just found

OpenStudy (518nad):

we know the left one is 7:4, or 4:7 depending on which points u take in order the right one is 4:3 or 3:4 depending on which points u take in order

OpenStudy (518nad):

the point is 7:4 is not equal to 4:3

OpenStudy (julyah1):

the ratio of MJ:ML is ..1:3?

OpenStudy (518nad):

no julyah remember the lengths u told me

OpenStudy (julyah1):

oh right sorry

OpenStudy (julyah1):

so it's D?

OpenStudy (518nad):

u said mj was 3 and ml was 4

OpenStudy (518nad):

yes

OpenStudy (julyah1):

yes so its 3:4

OpenStudy (518nad):

yup

OpenStudy (julyah1):

wait no

OpenStudy (julyah1):

oh nvm

OpenStudy (518nad):

and since its a rectangle u know the opposite sids are equal

OpenStudy (julyah1):

so this is the answer The two tiles are not similar because segment PQ is to segment QR is 7 : 4 and segment JK is to segment KL is 4 : 3.

OpenStudy (518nad):

sides*, so we dont have to do the same same process with the points

OpenStudy (518nad):

yup thats right

OpenStudy (julyah1):

thanks so much for your help and having patience with me! lol

OpenStudy (518nad):

you're welcome :0

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