help please (: Are the two figures below similar? Explain why or why not using complete sentences. Provide evidence to support your claims.
i'm here
thanks :)
simmilar figures have congruent angles and proportional sides
i cant tell if the angles are congruent.... but idk how to prove if the sides are proportional :/
find lenghts of easch pair of corresponding sides and find the proportion between them. if this proportion will be same for all corresponding sides then these figures are similar.
use distance formula to find lenghts of sides
okay give me a sec i'll calculate the distance
hmm looks like if i remmebr corretly my brother my doing that test and it looks like they are not simmilar, i'm lazy calculation this all.
i will do the calculation :) just check mai answer please
ok
hmm well look like they are similar
CD= _/(3-(-1)^2 + (4-6)^2 CD= _/16 +4 CD= 2_/5
' _/ ' --> is the square root symbol xD
my advice is: treat the sides like vectors and look how much they advance in vertical and horizontal directions. Example: BA = (2,-1), corresponding side of the smaller figure is IH=(1,-0.5) Do the same for other sides and look if there is any relation between corresponding sides components
im sorry but i dont get what u said .. :( sorry not good at this
you know what vector is?
|dw:1428778940801:dw|
this vector that i just drowed, goes 3 right and 1 up. So we could write it like (3,1).
|dw:1428779113102:dw| this second vector, goes 1 right an 1 down. We can write it as (1,-1). And so on
Do the same for all the sides of your figures and compare numbers you get for corresponding sides. Look if you find any relation between them
i appreciate ur help @myko :) but i dont get this.. it's not you .. im kinda slow lol thanks thou(:
kk
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