Area of a regular hexagon | Right triangles and trigonometry | Geometry | Khan Academy

[@MissMeganMarie99]

isnt it sad that I can get a better education off of youtube than in my high school math class! Thanks!

[@mauriciobeltre14]

Are you paying attention?

[@bgmarshall]

@@mauriciobeltre14 when you comment this the comment was atleast 3 years and 7 months old. Do they even remember that they commented this?

[@sheetal9257]

@@mauriciobeltre14 😂😂😂

[@willkershisnik5893]

@@mauriciobeltre14 this is an ignorant response to his statement

[@dy6mix]

@@bgmarshall7 years

[@nodariel]

I really love how maths can prove itself no matter what problem is involved. Great video :)

[@TheNicholsjj]

A formula I came up with is when side length is SL you can then take 3SL* (SL/2)*sqrt3. It will always work.

[@ShakkIsLife]

The area of a regular hexagon is: (perimeter)(apothem)*1/2, where the apothem is the altitude of equilateral triangle.

[@zack_120]

4:51 - at perpendicular conjunctions of two straight lines, only ONE 90 degree symbol is needed. The other side is automatically 90 degree based on 90+90=180: succinctness is the essence and beauty of math at least for this level (enjoyed this series!).

[@sillybunzy2839]

Thanks for the info!

[@ivanwarrior2615]

Thx you helped with my homework when I watched your vids I'm in a 3rd grade class G.A.P class in Mr. Gordon

[@baranrafipour9362]

Woah you’re in 7th grade now, right?

[@sunitarawat9012]

You are in 8th now!

[@tamerali2099]

@@sunitarawat9012Lamo

[@alisabri2237]

We could have also used Heron's Formula to find the a area of a single triangle.

[@rsimister]

lol at people quoting formulae. This is practice for logically breaking down problems, a skill you will need when formulae become inconvenient/nonexistent.

[@h0op2]

Thank you so much.

[@triggerguard1]

The instruction is very well laid out, but it would be nice for you to use real numbers, as opposed to the square root of a number. I'm teaching math to a group of fabricators and I've done so with machinist, but the hypothetical numbers that are used in these examples are never applied in real-world environments. Angles aren't theta and sides aren't the square root of a number. Most of my students have had the misfortune of learning math in high school with this same logic, leaving them completely unaware of how to use it in the real world.

[@nikstopics5879]

GrizzlyMtn i

[@normavillado6980]

You help so much

[@thedarklight6752]

people who need only the apothem go to 3:00

[@corriynelise1032]

thanks

[@saraa1214]

Thx bro

[@javkhlanenkhbaatar3843]

saved my life.

[@monjurahmed.]

Thanks

[@69faa69]

area of equal triangle= X^2*sqrt3 /4

[@69faa69]

area of a hexagon 1.5*X^2*sqrt3 X=side

[@alibenaissabenaissa2463]

Thanks you helped me alot with my homework

[@fazerisso]

Very good.

[@Karurosuki]

I love how he is just like, "AND WERE DONE!" at the end. he might have not liked this lesson...

[@sohamhalbandge8489]

thnxs

[@humanbeeing4780]

Anybody here in 2021?

[@SubscribersNoVids-lu1rg]

If you're confused about the square roots numberings the adjacent side (small side)=x hypotenuse (large side)=2x opposite side (medium side)=X times the square root of 3

[@iluvbigbootie]

the long cut of finding the area shouldve use formula area= 1/2apothem*perimeter; with apothem= s/2*sqrt3. less chances for error.

[@DevLuckk]

Great video who agrees

[@mohmoh-mp7es]

area of hexagon is 3.√3/2.a²

[@eyelashbug5461]

if i know one side do i do that number multiplied by six?

[@2kbling]

@khanacademy shouldn't it be multiplied by 12 since the right triangle is half the equilateral triangle

[@ZDrive]

What program did you use to make the marks in this video?

[@MrTigerman08]

hi, can you please remake the videos of calculus, and give some new examples.

[@seenvasreddy]

how do u get 2sqrt3 there

[@jaskaransingh6440]

the side of the hexagon is assumed 2sqrt3

[@Krishnam-g2u]

Cyblohexane

[@pusplatam]

7:51

[@amjadmirza2343]

tht 3 concept u wrng u took the wrong side of it ,u have to take the side opposite ti the right angle nt the side whr the right angle is present

[@abhijeetbhatta9017]

Cant we just use the formula for equalateral triangle instead????.that way we don't have to figure out the height

[@ahkam7548]

I don't know why you can't prove it generally. Why you have taken side length = 2√3

[@keenansmith6163]

What does he mean by "Two squareds of 3". How what does that equation mean and how can I read it?

[@keenansmith6163]

Is 2√3 = 3.4641016151377545870548926830117

[@joecaljack]

1st! wooohoooo

[@Lime_Mcoc]

Nice

[@boxhead8694]

No 2kbling, he found the area of 1 triangle then multiplied by 6. Your referring to HALF A TRIANGLE!

[@Anonymous-bq9df]

Nope. He changed it later..and found the area of the whole triangle.

[@banothraju8276]

with 5 areas out of six, of six pointed star are given, how to find out the sixth area of the triangle with thoose given 5 areas ? anyone pls help me.

[@prasoonmbe]

I use Khan academy

[@deanna.111]

We're learning about this and I'm in 7th grade 😩 I'm not even in honors or accelerated

[@hiddenblue1598]

How come the apothem is 3?? 😅😅

[@starbreaker8513]

I'm, what happened to splitting the hexagon into 2 trapezoids?...

[@mohitsinha6011]

dab

[@stormdraws1642]

i came for math​ help, i found someone with a pfp of Sebastian's demon eye, and im laughing, idk why, but I am

[@BlaireTaylor-f9y]

IDK if its just sleep deprivation but I'm still confused

[@rounaksharma3672]

this doesn't apply on every no. like try on 6cm of each side of hexagon... try this-3√3 a^2/2

[@Jessica-kq5pg]

I still don't understand it

[@zoeparker3847]

III • it’s always 6 equilateral triangles so you can just use the equilateral triangle area formula and then multiply by 6 bc there are 6 little triangles in the hexagon

[@isabellewitthuhn8175]

Hehe I’m the 69th comment

[@humanbeeing4780]

NIC

[@BlueNitroTiger]

I'm in grade 10 and I find this very difficult and confusing.

[@princechristopher1133]

I am garage 5 I don’t know why I am here

[@abhinavmonga4946]

Lol 6.69 mil subs

[@wendys2471]

I don't understand.

[@InfraredVision]

why is the 2Sq of 3 .. I'm trying to learn.. I don't know it that's the actual length, if so use a normal ###### number... of it it's a formula..

[@KapilKumar-ke9sx]

Thoda hindi vaalo ka bhi dhyaan rakh lete angrej

[@livid91]

what is an altitude?

[@gadgetboyplaysmc]

height of the triangle basically. he created a line from the vertex of the hexagon to the base of one triangle and called that line the altitude.

[@T1mothy187]

Thank you!!