sas congruent postulate?
geometry
what about it?
i don't understand s-a-s or s-s-s , like the way its taught i wanna like know a simpler way of understanding it cause the postulates are pretty confusing for me =\
ok can you tell me what s and a stand for to start?
side and angle
good so do you understand the concept of similarity?
is that congruency
sort of ie, all squares are similar. one may be bigger, but the porportions hold from square to square
okay like same shape but a different proportion of the sides ?
yea, so congruency says that those squares have the same side length. They are identical and similar
okay so is sasand sss just a way of describing those types of similarities
yes, sss tells you that all of the sides of the triangle are the same
just like the square ex
okay and are they the same by the length of each side or the angle? or is it both
and sas tells you that 1. 2 sides are the same. and 2 the angle between the sides is the same. (that implies that the 3rd side is the same too)
well it ends up being both
so sss would mean that everything is equal
mhmm
so does sas mean that one of them are different
no, it's just another way to show they are equal
wow thats weird and confusing so what is the different of sas and sss
different ways to show the same thing
sometimes with the given info, you have one, sometimes the other
dang thanks i guess ill just keep doing this lesson , i have to learn asa aas amd hl too =\
khan academy
it'll be your best friend
i use to watch his vids but idk ,
but they aren't bad. they all end up meaning the same thing, just different ways to get there.
just like you probably know at least two ways to get home from school right?
my school is online but yeah, and what are the points of these postulates
to show two things are the same
ie. you start at one point and can take many ways to get to the same end. Some days, one way is just faster and easier than the others
wow so i dont really need to know these postulates?
yes, you do
yeah as i continue thru this unit on whatever these postulates are they don't explain much kaybe i was expecting something else, but idk they are pretty confusing do you think id have to memorize this to continue geometry
because one day, your normal road will be closed so you have to take a side street
and yes, they are pretty basic
but what will i be solving in geometry that has anything to do with these poistulates
everything
what will i need them for
literally everything
like what like solving for x?
parallel lines, triangles finding sides angles proving thms blah blah blah
it goes far beyond solving for x
its weird cause all i do is take test and don'treally have to physically draw anything so im wondering what my test will be when it asks meabout asa and sss and stuff
again khan academy
what would u consider a side and what would u consider an angle when its saying aas
they have a great geometry section
is a like point a then a point b then s point c?
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no am i right?
no,
they don't look the same, but they in fact are by AAS
wow so they are concgruent even with different side
size
yep, why? side C=sideC Angle A=angle A Angle B=angleB
doesn't matter what the pic looks like
just the actual measurements
wow thanks i thought they had to be the exact same size but i guess they dont
well they actually are, they just don't look like it
that is what it means to be congruent, but understand, pictures can be decieving
check out purplemath.com 's section on this too
okay ill check it out thanks alot for your time and help if i ever need any other help ill come to uor someone idk
ohk. Seriously though, Khan
np
i tried to quickly watch but im so lost
uhh he takes it pretty basic... i don't htink I could make it any simpler :/
i cant tell the difference at all. they all look the same, im not sure how to differienctiate every triangle with asa or ssa or aas
its alright i just have a bed time at 9 and im trying to finish this test and his video is 11 minutes long this sucks
I mean, there is no telling the difference. it's just if one applies, then they all apply
It just depends on your given
i dont understand , like heres an example triangleABC is congruent to triangleEDC by SAS. How do you know that the included angles ACB and DCE are congruent even though they are not marked?
Do you know what vertical angles are?
yes they are congruent right
yep so that means that angle C which is between the two given sides, is the same in both triangles. Hence SAS
thats confusing but ill get to it soon i guess. i got above 50% i guess thats alrifght for half way knowing
talk to u later
thanks again
uhm ok np good luck
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