Points after rotation | Transformations | Geometry | Khan Academy

[@prankstermanparkour562]

This made my math 10000 times easier, mom told me that "math builds on it's self". It doesn't if it just jumps to rotational transformation from 6th grade graphing

[@mrbarnacle1790]

or slope

[@Sara-sl9wz]

I'm still confused and I have a math test tomorrow 😔

[@mariusallegre8613]

same

[@Justinbyleth]

same

[@sarabjeetghotra9291]

Same

[@tylerbeck7511]

Gabriela Lovegood ha ha, I already knew this just had to make sure

[@suzettemckinney8351]

me too

[@danielaguilar-lopez2652]

you made this much more complicated than it actually is.

[@junky3795]

So explain then

[@satoshinakamoto7253]

how does he know to what scale to draw the green triangle?

[@Helloknight]

@@satoshinakamoto7253 are you serious right now

[@Hi-wz9wc]

Ikr. Much harder than how my teacher explained it. I don’t get either of them though and my test is tomorrow.

[@_iamraee_1780]

anyone here from 2020 bc we have online school now🥴.

[@ak0rmn]

if 2021 counts yeah

[@alexgulewich9670]

2021 online schooling. Not even for my math class, not even obligated to do so. I'm just overly ambitious and I bloody hate math. But I do it anyways, because it's a transferable skill

[@nusaibafatima1324]

IF 2021 THEN YES

[@EthanWashington10]

I have a test on person 40 minutes from now

[@Kwlkwks8]

That’s 4000 years ago

[@miIk1.0]

this is easy just have quiz next week, thanks

[@badangelray4648]

Sorry but am confused,am not getting this can u kindly use another example

[@thainguyen6992]

what is you have to rotate it 50 degrees?

[@moro653]

which window you use to draw

[@nottrashplazyt9354]

Thanks , I now understand the “L” thing my teacher has been talking about .

[@anuj521]

Got you

[@graysonwilkins6217]

This looks like a lot of work for one shape

[@SashaRanganath]

OHMYGOD THANK YOU FOR THIS

[@Ela-nu8oq]

i have homework due in a like 2 hours. i have no idea how to do this. i’m trying to keep it together

[@noluvmiah289]

Did you get it done?

[@Ela-nu8oq]

@@noluvmiah289 i found the quizziz my teacher copied off of and i copied the answers

[@asdfswer4657]

@@Ela-nu8oq LOL

[@paulpett5947]

thanks for this I really needed this i have a test next week

[@AvinashJuriani]

well that gives a pole star much better than a triangle

[@sayonaranika4347]

this is so confusing

[@subashinimrs]

Why right triangles when u can just make a "L" at the origin

[@shobhanalla7272]

?

[@rotcod2886]

Same difference

[@c4r4dd1ct6]

I was trying a problem using this method, but for some reason I got a triangle that was smaller than its original one because there wasn't enough space on the graph. Can anyone tell me why this is? The points on the triangle are (-7. -3), (-2, 1), and (-5, 4), and you have to rotate the triangle 90 degrees. Am I doing anything wrong?

[@yassenwalid5963]

I thought this was an art video after seeing the first graph at the end...

[@slimemyhouse9877]

So many lines xD

[@KevinSmall]

Not the best example Sal

[@toffeedisc8264]

I’m here because we’re having a math quiz tomorrow

[@naahsigames5336]

Why did you make it so confusing, I just did a different way got same answer. Take the points and do this --> (x,y) ---> (-y,x) just take the points and put them in this formula and you get the same answer the is 90 degrees counter clockwise formula. For 180 degrees you can use this formula (x,y) ---> (-x,-y) and for 270 degrees counter clockwise you can do (x,y) ---> (y, -x). Also 270 degrees counter clockwise is equal to 90 degrees clockwise. If u need help reply to this (btw im in 8th grade geo so yea life tough i understand)

[@rikardtapia1027]

I don't understand is, -90 degrees counterclockwise or just clockwise

[@rikardtapia1027]

RadioactiveSalmon thanks

[@cameronspalding9792]

-90 counter clockwise=90 clockwise, -90 anticlockwise= 90 clockwise

[@falufali9226]

this is so stupid who would do it like this be smart and write down a rule god no help at all

[@iajjai9090]

Judah Fashe are u stupid listen closely

[@bakihanma1680]

Sal do a video on clockwise and counter clockwise !!!

[@raahil1]

240 likes

[@hehe2322]

Just use rules

[@thelastharv]

Actually the explanation isn't that clear its missing key information

[@yughaasahmed5570]

I thought he taught maths, not drawings😂

[@chenyilin8575]

He was literally over complicating it

[@pxldo79]

this didnt help me at all

[@graceconklin8061]

all you did was rotate

[@nityavyshnavimadduluri3568]

😂