Surface Area of a Cone | Math with Mr. J

Welcome to Surface Area of a Cone with Mr. J! Need help with finding the surface area of a cone? You're in the right place!

Whether you're just starting out, or need a quick refresher, this is the video for you if you're looking for help with how to find the surface area of a cone. Mr. J will go through a surface area of a cone example and explain the steps of how to find the surface area of a cone.

About Math with Mr. J: This channel offers instructional videos that are directly aligned with math standards. Teachers, parents/guardians, and students from around the world have used this channel to help with math content in many different ways. All material is absolutely free.

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Hopefully this video is what you're looking for when it comes to calculating the surface area of a cone.

[MathwithMrJ]

✅ Thanks so much for watching! ✌️✌️✌️
✅ One quick note about the step where the radius and slant height are plugged into the formula... I do not have an "x" to represent multiplication in between π and 4 squared for the area of the base like I do for the lateral area (πx4x13). This is okay because π next to a number means to multiply.

[tarushshrivastava]

Sir I am a student from India, Thank you for the video

[abdelhamidhamdan]

It took my math teacher a hole week and I didn’t understand it and a random guy on YouTube expanded it and I understand it

[anapopadich]

Thank you! I have a math test tomorrow and wanted to know how to do this just in case. It was way easier than I thought, all I have to do is remember the formula.

[taptaption]

Thx sir, I needed to learn this to get into a school

[Monkeh]

W teacher.
my teacher took 3 days of complicated classwork and lectures just to learn the same thing but better in 5 mins

[fatimahelsakka]

Say I agree if you think Mr J has a brain of mathematics and very smart well I agree

[blue_editzz]

You helped me a lot with my exams, you deserve more likes sir

[StrxberrieKisses]

Thank you so much for teaching me!! Now I’m ready for my math final! 👍😄

[kailahsparrow]

Thank you soooo much I have such a hard time with geometry you made it seem so much easier

[rikasoft]

Thanks, my teacher taut us a really complicated way where you have to find the angle area so it was really complicated

[chadfoxnen]

im only watching these for the fomulas but thank you

[Audreyytt]

Omg i have a test todayy hopefully i can remember thjs

[yanyanreyes]

Sir Thank you for the lesson this is really helpful for me

[Marshimallu]

Thank you for this!! I needed this because my final exams are so close, this helped a lot!

[DeaTh-hpeo]

I needed this for my grade 8 exam thanks

[TeacherSatya]

This was a very nicely done video, keep it up :)

[singh]

Instead of unravelling the cone you could just take length( which is the square root of height squared plus radius squared ) and make that the upper bound, then along that length you can get each height if you calculate the angle. So the integral will be xsin(angle) from 0-L, then multiplied by 2pi and added to area of base.

[yanyanulan]

Hey Mr. J! Can you please post a video about the surface area of sphere? Thanks so much for helping meeee ❤😊

[cooperdorta]

dude this helped me not fail my maths exam. thanks, what a nice guy