Sprint Science group- t.me/joinchat/RYszj_1cAl8xEvnv Sprint Social Science- t.me/joinchat/GCBE5bDgFdxrZeI8 Sprint Mathematics group- t.me/joinchat/GBbG4p5S_OVRV920 ----------------------------------------------------------------------------- Scheduled Syllabus For Sprint ( Class 9th ) released describing :- which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 Duration:-1 month (Jan 2021 - Feb 2021) Free Batch Exclusive on our RU-vid Channel : Physics Wallah Foundation - 9 & 10 Batch Details 1)Best Faculties across India for different Subject/Topics. 2)Complete & Relevant Syllabus Coverage of Class-9th within 1 Month- Fastrack Jan 4,2021-Feb 15,2021 3)Monday-Saturday : Scheduled Classes everyday ( for each Physics, Chemistry,Mathematics , Biology and SST) Physics : Tues, Thurs, Sat Chemistry: Mon , Wed , Fri Mathematics: Mon, Tues, Wed, Thur , Fri, Sat Biology: Wed , Thur , Sat S.ST : Mon, Tues, Wed, Thur , Fri, Sat 4)Scheduled Syllabus released describing :- which topics will be taught for how many days. Available at PhysicsWallah App :bit.ly/2SHIPW6 Physicswallah Instagram Handle : instagram.com/physicswallah/ Physicswallah Facebook Page: facebook.com/physicswallah Physicswallah Twitter Account : twitter.com/PhysicswallahAP?s=20 Physicswallah App on Google Play Store : bit.ly/2SHIPW6
@@pt.dileepshuklajyotirvid8264 you can take the unknown angle as x. The ratio of angles is 8:2 because the answer should be 4. You can even take 32:8, since simplifying them would result in 4. that's why you can take the measure of two angles as 8x and 2x. At last, we took 8x + 2x = 180° because it was given that they were complementary angles, meaning the sum of both the angles is 90°
@@pt.dileepshuklajyotirvid8264 bro *A/B = 4* matlab yar har number ke denominator mein 1 hota hai na so 4=4/1 so we should write *A/B=4/1* Yaha cross multiplication se *A=4B* And as *A+B = 90* we can write *4B+B=90* *5B=90* *B=18* So, _Angle_ *B=18°* And as *A=4B* *A=4(18)* *A=72°*
You made a super ez ques so complicated..... If ratio is 4 that means ratio is 4 : 1....just take the angles as 4x and x So, 4x + x = 5x =90 Therefore, x = 90/5 = 18 So angles are x = 18 and 4x = 72
1:5:13 Solution: y+3x-15+y+5=180 (angle AOB is a straight line and sum of straight line is 180 degree) 20+3x-15+20+5=180(y=20, given) 45+3x-15=180 30+3x=180 3x=180-30 3x=150 x=150÷3 x=50 Now same equation but now you have to put the value instead of variable x=50, y=20 y+3x-15+y+5=180 20+3(50) -15+20+5=180 20+150-15+20+5=180 170-15+25=180 170+10=180 180=180
33:05 , sir answer of this question is a= 72° , b=18° Explanation : ratio of a and b is 4:1 . So let angle a be 4x and angle b be 1x ,then 4x + 1x = 90 , 5x = 90 , x= 18 thus, 4x (angle a)= 72°, 1x (angle b)=18°😊😊
Oo my god what a brilliant teacher at first I thought that no one is better than prince sir of magnet brains he also teaches brilliant and fantastic but after seeing you sir you have surpassed him no comparison but my each and every doubt got cleared now I found that why people love physics wallah and magnet brains
Hello sir.. Sir mein kuch bolna chahunga.. ki sir 1 hr ka class sabke liye mazedar nhi hoga.. kisi kisi ko bor lagega. Toh sir mein bolna chahunga.. ki sir beech mein kuch memes add kar diya kijiye. Jiske wajah se class thoda mazedar ho jaega.. jaise.. aree kehna kya chahte ho.. abhi maza aaega na vido.. aila!! Jaadu.. aise jisse class aur bhi mazedar hoga.. Thanks..mera idea acha laga toh thik hai.. nhi toh ignore kar sakte hai.. Thanku 🙏🙏
33:03 Let angle A =4x Let angle B =x Or 1x Angle A and Angle B are complementary angles to each other Angle A + angle B= 90 Put the value of angle A and Angle B 4x + x = 90 5x=90 x=90/5 x= 18 Now multiply 4X18=72 Ans 1X18=18 Ans Now we got the value of angle A and Angle B
1:06:31 , sir answer of this question is: Given - y= 20° To prove- (y + 5)°+(3x-15)°+ y°=180° Proof- We know, all angles around 'O' = 360° Then, y + (3x-15)+(y+5)+ 2y+(4y+10)+x = 360° From solving this equation we got x = 50° and thus (3x-15)°=135° Now , (y+5)°= 20+5 =25° (y)°= 20° (3x-15)°=135° Adding (y+5)°,(y)°,(3x-15)° 25°+20°+135°= 180° Therefore, AOB is a straight line . Hence, proved.😊😊
Sir h.w answer Angle A +angle B = 90 Let angle A be 4x Angle B be x 4x +x =90 5x=90 X=18 Then,. 4(18)+18=90 72+18=90 Hence , angle A is 72 And angle B is 18
1n q 1:00:50 we can also find 2c by saying poq as a straight line and 4b + 2c=180°(linear pair)or(poq as a straight line) and then 4b =84 as b = 21 and then 84 + 2c =180° 2c=180-84 2c=96 c=48
Machaya sir chamak gya you are the best teacher I was trying to do this ch from last 1 month but when I watched your video all things are like cleared😊
33:06 Let the angles be 4x and x Now 4X+X=90 5X=90 X=90/5 X=18 Therefore, Angle A=4times 18=72 Angle B=1times18=18 Hopefully these help to you....if any confusion arise u can ask me
Sir jinhone abhi maths ko serious liya hai unke liye bohut difficult ho raha hai aap pura explain Karo ki aapne divide Kiya hai ya konsa formula laga hai
34:02 ans A 🙂 complementary angle means sum of "TWO" Angels should be 90 degree and sir asked what will be the sum of one angle which means, if we one angel is suppose 45 degree so to find other angle we will 45+x=90 degree X=90-45 X=45 which means the other angle will be 45 and we add both the angle it will be 90 degree which means complementary angle And one angle is 45 degree and accute angel means more than 0degree and less that 90 degree and obviously 45 degree is less than 90 which means A accute angle 🙂 Hope this helps ⚠This is just an example
I have cleared all my concepts but i see this video again and again because teachers teach soooo interestingly that everytime I say to myself ' Chalo aur ek bar dekh lete hain'
ans= Ratio of a and b is 4:1 So let angle a be 4x And angle b be 1x 4x+1x=90° 5x=90° x=90/5 =18° = one complement So to find 2nd side Comp angle be =90-18=72° So second complement be 72°
@@sairasaira7773 he tried his best and u can't say anyone they shouldn't proud of if he is happy with his number and he also said that he will try his best to get full score.
Accha pdhaya sir aapne bhot. He concept pr questions bhi solve kite isse concept ekdum clear hogya. Kyunki jb hm pdhte h toh hmko lgta h aagya smjh lekin jb question solve krte h toh understanding aur bhi crystal clear hojati h aur smjh aajata h question ko breakdown kse krna h. Thankyou sir
∠A+∠B = 90 degrees ∠A+B = 4 / 1 Let , the angles x 4x + x = 90 degrees 5x = 90 degrees x = 18 degrees 4x = 4 x 18 = 72 degrees Answer of q 1 And answer q2 is a) acute angles
Sir mai ro rhi thi apni padhayi ko lekar but jaisahi aap ki video dekhi mai mun par hasi agyi sir aap bohot badhiya padha rahe ho aur bahut achhe motivator ho sirrr Thank you to all teachers of physicswallah 😍😃😃😃😃 mohit sir and sanyam sir 💙
In the time 1:00:19 sir had given a question. I solved the question and my answer is same as the sir solved but i used the different way. I used vertically opposite angle theorem and finded the value :-
34:00 Ans) let's an angle be x Complement angle be 90- x 2x =90--x 2x+x=90 3x=90 X=90/3 X=30 Complement angle be =90--x =90--30 =60 It means ans is a) Acute angle
@@siyaprajapati2193 yeah I can help you friend..!!! Question : angle A and angle b are complement Ratio of angle A/B = 4 Find angle A and B Solution : angle A and angle B are complement angle So, angle A + angle B = 90° Ratio of angle A and angle B=4/1 A:B = 4:1 Let angle A = 4x angle B = 1x Hence, A+B = 4x + 1x 4X + 1x = 90° 5x = 90° X = 90/5 X = 18 angle A = 4x= 4×18=72° angle B = 1x = 1×18=18°
Homework..... Angle A =. 18° and Angle B = 72°● Explanation of this question is...The ratio are given 4 {4:1} so we know that complementry is 90° Let the angle be 4x + x = 5x . 5x =90° [ complementary angle ] Now, x= 90/5= 18° 90°-18° = 72 °
Let the angle be x 5he commplement will be 90 - x The ratio angle A and angle B is 4:1 angle A will be 4x as it has the ratio 4:1 And b is 90 - x as it is the complement of angle A 4x = 90 - x 5x = 90 x = 90/5 x = 18° Ok bro
Bro sabsey phele jab hamne dekhnahai 4 kaise aaya tab dekho hum 8ko 2 sey divide karenge tab aayega 4 and hum ese karenge ki ek value hum 8x kar denge aur dusri value 2x and hum inn dono ko plus karenge phir bo kiske equal hai 90 degree esey equation ban gyi phir hamara ans 9 aaya phir 2x aur 8x mey 9 value put karo aagya dono angle. I hope you understand very well bro. 🥲
@@progamershub2227 A and B are complementary angles the ratio of angle A / angle B = 4 find Angle A and B ? Solution: Complementary angle = 90⁰ angle A and angle B are complementary angle So, angle A + angle B =90⁰ Ratio of angle A and angle B = 4 /1 A : B = 4 : 1 Let Angle A = 4x Angle B = 1x A + B = 4x + 1x 4x + 1x = 90⁰ 5x = 90⁰ x = 90 /5 x= 18⁰ angle A = 4x= 4×18 = 72⁰ angle B = 1x = 1×18 = 18⁰ Hope you understood 😊
1:05:11 x=50 Degree, and by solving the equation {y+5+3x-15+y} we get 180 Degree and by CONVERSE OF LINEAR PAIR AXIOM it AOB is a straight line. Hence proved
Can we solve the second question this way ... Let angle be x Supplementary angle 180-x(1/5) X= 180° -1x/5 5x+1x /5 = 180° 6x/5 = 180° x= 180° X 5/6 x= 150°
I like your teaching style and explanation my all douts clear know I am start the learning of PW now no any problems and no any confusion..so thnk u so much Pw.✨
