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13 - What is Surface Area? Definition & Meaning - Calculate Area of Rectangle & Units 

Math and Science
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Twitter: / jasongibsonmath
In this lesson, you will learn what area is, why surface area is important, and why do we need to calculate area to solve problems. We measure length in inches, centimeters, and meters. Area is measured in square inches, square centimeters, and square meters. We find the area of an object by determining how many square units fit on the surface. That is why it is called surface area. For rectangles, we can find the surface area by multiplying the length times the width. For circles, the area formula involves Pi and is A = Pi * R^2. There are related equations for area that apply to other common objects such as the area of a square and the area of a cylinder and the area of a triangle. Area is used extensively in Geometry and Calculus.

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23 июл 2024

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Комментарии : 67   
@hemarajue2736
@hemarajue2736 4 года назад
Important concept. In my school days I didn't have an Idea that an area was composed of smaller or unit squares. We can use distributive law to better visualize the concept of an area. Eg 2cm×3cm= (1cm+1cm)3cm=6cm^2. Reading is to speed Writing is to remember Practice is to fluency.
@Abhi-2468
@Abhi-2468 2 года назад
In love with Maths .... and with due respect Professor .... loving your explanation .... thank you so much ..... 😊
@nsdwastaken
@nsdwastaken 4 года назад
Thank you your the best math teacher
@duhom1665
@duhom1665 2 года назад
now iive just acquired the basic idea of unit² (or square unit)...before i only knew in terms of area, unit is just a square unit and in volumr, its just a cubic unit, thats it...but now you opened my eyes...thank you so so much ..
@solaokusanya955
@solaokusanya955 2 года назад
You have done it again!.. I don't comment on all I watch not because the ones I didn't comment one are any lesser than the ones I comment on( I know it's a lot of words) Another eureka-ephiphany moment... Thank you Jason... Thank you .
@lafdahogyabc4743
@lafdahogyabc4743 4 года назад
Thank you very-very much proffeser it's relly needy video which I looking for
@lorenzofolloso6952
@lorenzofolloso6952 4 года назад
Thank you. It helps .lotHi, can you have topics like logic and set theory. Bijective function ptsome thing that.
@fahmidahaque6116
@fahmidahaque6116 4 года назад
Thanku for these classes. I really like them and they really help!
@MathAndScience
@MathAndScience 4 года назад
You're very welcome!
@GurshanSinghFF
@GurshanSinghFF 3 года назад
Thanks Sir
@farhadkabarzani-
@farhadkabarzani- 4 года назад
Amazing teach Sir tnq u so much
@iamakar
@iamakar 4 года назад
Thank you very much and good luck Proffesor
@MathAndScience
@MathAndScience 4 года назад
Same to you! Thank you so much!
@samkelosheperd7534
@samkelosheperd7534 3 года назад
Your work is beautiful sir keep it up
@adamsahal5155
@adamsahal5155 11 месяцев назад
Great professor ❤
@guidofeliz8384
@guidofeliz8384 4 года назад
A very good break down of the area concept. This is not taught in schools today.
@kyleventer_twts6197
@kyleventer_twts6197 3 года назад
thanks you so much
@imperfectmammal2566
@imperfectmammal2566 4 года назад
Nice video, is this section in algebra or geometry?
@enlightenmenttech5657
@enlightenmenttech5657 4 года назад
Your explanation is amazing sir
@MathAndScience
@MathAndScience 4 года назад
Thanks so much!
@aatwingaming
@aatwingaming Год назад
Thanks sir lots of love from nepal
@mikemullenix6956
@mikemullenix6956 4 года назад
Thanks for your contribution to math and science Jason.Years ago I bought your dvds on how to hp50g and trigonometry. Great dvds, back then your favorite calculator was the hp50g. What is your goto calculator today? Also what its your iq? I you must be a genius.
@MathAndScience
@MathAndScience 4 года назад
Thanks so much! Well I still use the HP50g! I haven’t had my IQ tested, but honestly it probably is not anything special. I think I’m just decent at explaining things because I was always that kid in class that never understood what was going on. Took many years to “get it” and it didn’t come naturally to me. Thanks again! Jason
@mikemullenix6956
@mikemullenix6956 4 года назад
@@MathAndScience many thanks Jason, You are indeed a brilliant gifted teacher and mathematician .
@krish70.
@krish70. Год назад
@@MathAndScience sir thank you very much I'm studying mbbs But I love much physics much thanks sir
@tvshow9052
@tvshow9052 2 года назад
Sir Continue teaching on RU-vid Sir what does 8² means when we find area of any shape ।।।।। Love from india ।।।।।
@MathAndScience
@MathAndScience 2 года назад
8^2 means 8x8=64
@tvshow9052
@tvshow9052 2 года назад
@@MathAndScience OK..... thank-you so much sir, Respected Sir from which country you belong
@sayon1116
@sayon1116 Год назад
Dear Sir, Why my teacher not a teacher like you? 😅 #GeniusTeacher
@Kaylin26
@Kaylin26 Год назад
Tru bro our teacher only told sq cm and didn't explain this
@challianipialtu288
@challianipialtu288 Год назад
Thanks!
@MathAndScience
@MathAndScience Год назад
Thank you so much!
@tiakhan6781
@tiakhan6781 2 года назад
thank you sir 😊😄
@MissChandSumona
@MissChandSumona 2 года назад
What an explanation 🔥
@MathAndScience
@MathAndScience 2 года назад
Thank you!
@imperfectmammal2566
@imperfectmammal2566 4 года назад
Sir, can you do more statistics courses, I finished all your statistics courses and I still feel like there is more out there. I hope you can do more statistics lessons soon. Thank you.
@sanjaykumarv6490
@sanjaykumarv6490 4 года назад
I always mess with area and volumes. Help me out geeks...
@mikemullenix6956
@mikemullenix6956 3 года назад
Question about hp calculators? Is the hp prime => hp50g for engineering? Thank you Jason
@MathAndScience
@MathAndScience 3 года назад
Honestly I’m not sure. Don’t know much about that calculator sorry!
@mridulacharya8250
@mridulacharya8250 2 года назад
You have randomly chosen to check that how many *squares* fits in the rectangle...so can't I choose how many small rhombus fit in the rectangle or how many small rectangles can fit into the bigger rectangle??
@Lemon-ej4pn
@Lemon-ej4pn Год назад
You can...then your unit would be rhombus cm
@joerob5917
@joerob5917 Год назад
@@Lemon-ej4pnthat’s sounds so clunky 😂
@CalesiaLammie
@CalesiaLammie Год назад
👍
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
1inx8in=8 in2
@withtany817
@withtany817 3 года назад
The area of rectangle is 94cm square.its length is twice its breadth. Find its length and breadth.
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
3mx3m=9 m2
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
2mx5m=10m2
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
2cmx3cm=6cm2
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
area place measure length width height
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
4cmx3cm=12cm2
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
area=12square centimeters
@mohatube428
@mohatube428 3 года назад
thank u because i was failing with length and width so thank u very much
@faaybox8352
@faaybox8352 3 года назад
its is very easy
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
area=6 square centimeters
@smallhead7623
@smallhead7623 3 года назад
Ikr
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
area=10 square meters
@ranka888
@ranka888 3 года назад
My nephew hates maths, but when I explained him the concept of area after watching this video he realised that he loves Maths
@MathAndScience
@MathAndScience 3 года назад
This makes me so happy!
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
area=8 square inches
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
hahahaha
@sethfrederick1336
@sethfrederick1336 Год назад
OMG he's lovesick
@guidofeliz8384
@guidofeliz8384 4 года назад
A = L•W A = (4cm)(2cm) A = 8 cm^2 Students find the answer to this problem and quickly think they are a mathematician WITHOUT knowing what they found. They have no idea what 8 cm^2 means. Teachers in today's world are pressed for time. Teachers are told by their bosses to teach to the test, which explains why students can pass exams by simply memorizing steps. Memorizing steps is not learning math correctly.
@MathAndScience
@MathAndScience 4 года назад
I completely agree. Thank you so much for your nice comment. I really want people to understand what they are doing instead of just doing it.
@malachimartin7030
@malachimartin7030 3 года назад
Wow
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
area=9 square meters
@racquelsabesaje4562
@racquelsabesaje4562 Год назад
hahahaha
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