Calculate angle ABC, area ABC and shortest distance from B to AC. 2021 paper 2 Trigonometry.

#cosinerule
#trigonometry
#trigarea

[@ndivhuwomaseko6232]

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[@MikeNgandu-ob4jn]

You're really gifted with wisdom sir

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This channel has been extremely helpful in understanding math

[@LawrenceAmeyaw-hj2vl]

Please I did not understand the last part did u mutiply the variable and constant together

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Thank you sir u are the first teacher that teaches math and I understand

[@user-pg6tb8qo1m]

I'm really enjoying Sir

[@farhansadik5423]

Found two ways while looking at the thumbnail, either use c^2=a^2+b^2-2abcos(theta) and solve for theta, or do the easy way and solve using law of sine

[@user-xc4ui2qi7k]

Thanks for helping me to understanding the questions

[@user-of2br8nh8n]

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[@ChristopherMutanti]

I understood Sir thanks 🙏 may God bless

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u're the one and only

[@user-zr4zs3ig7k]

Do we put metres squared on the shortest distance

[@ClaudineMapiche]

You are powerfull

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Thank you for helping understanding well

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This man is naturally gifted

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Thax for da grt concepts sir❤

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Thank u so much sir for helping me I really appreciate may almighty GOD bless u 🙏 ❤️ 💖 💗 💛 💓

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Sir, keep it up am getting your lesson very well ❤

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🤙🤙 it's wonderful I like it

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[@OrisonJerrypaul-pl1vf]

Well done sir,
You had done well,
I'm from Nigeria ,
Preparing for next year jamb ,
I need to well prepared in math, chemistry and physics,
What do do coz I loved the way are teaching

[@noahsiavuta]

Thanks for that topic sir😅

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Sir ndimafuna mundithandize vector imeneyi ili pa paper 1 ya st.mary's 2021 please ndiya vector algebra koma yopanda midpoint

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ICAN UNDERSTAND YOUR EXPLANATION BUT YOU ARE A GOOD AND BEST TEACHER

[@user-qp1rg5qo6e]

Thank you sir for teaching us God bless❤

[@JozyNakiganda]

Sir why did u first use cos how do u determine it

[@LusianoChibuye]

I like it your explanation what about other subjects like science, civic education and food and nutrition

[@OsundeyiDolapo]

This video was really helpful..... Thank you sir☺️

[@Giftmwewa-jp4qb]

Thank you Sir am enjoying your lesson

[@user-lv3kc9hy7o]

Sir we're very grateful 🙏🙏
Continue helping us

[@heriseasy211]

Sir at calculating area it took me straight to the answer after the second step so i didn't divide with 2 at finding area to go to the final answer the calculator that iam using is from phone.now question was how will i know am i still gonna divide with 2 if i have a significant calculator....i currently don't have a one that's why I'm using this one

[@user-wq7nd6ud8b]

1/2*acsinB 2 it's in the formula.e.g 1*7.2*11.5 sin 105.4=79.82709947/2 from the formula hope have tried

[@rubbendzidefo2245]

I really enjoyed this man's explanation and teachings,but it seems I got confused when he was solving the first question( the diagram question)it looks complicated for me, but well thanks

[@CostenDax]

Sir on the equation how can u know that u have to add or subtract 🤔🤔

[@KabsonSililok.m.e]

Is there any formula to use apart from that......?

[@ClementSichali]

Thank you sir for making me understand

[@MunyanezaVenuste-ov4km]

I don't under stand sir why you using formul for b

[@fatormaamadu345]

To answer your question, this can be applied to any of the letters depending upon your choice not only b

[@MevisChileshe]

Thanks for your help and for your kindness thanks very much

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[@TawandaBarure]

That's great

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Judy aguh mi aguh want yuh and the 2

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Enjoy the show 😅😅

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U are a good teacher

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Wonderful teaching

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Good one sir

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Enjoying the lesson

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This is very helpful

[@DebemponiJacobNaampuyit]

Well done

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Sir this is really helpful

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[@OrisonJerrypaul-pl1vf]

Sir please in your last question solved,
What happened to the y squared on denominator,

[@cyberloaded]

Please sir, where is the 2 coming from?

[@TawandaBarure]

Good job ❤❤❤

[@JOHNKAMUKWAMBA]

Great job

[@trynesschanda4730]

Thanks sir for the lessons

[@VaheuaviTjinanaa]

Where did you get sin while we have Cos

[@MevisChileshe]

May Almighty God bless you

[@PeterNsama-mw9mt]

sir i cant understand why you used sine at area of triangle why not cose😄

[@ChipegoChikanta]

Yes why we use a sin at area of a triangle❤

[@BritahFodens-dh3fx]

Sir why are u using cos instead of sin

[@sirgodyjahome6180]

​@@BritahFodens-dh3fx When you are given all the sides of a scalene triangle without a single angle, cosine rule is the most exceptional formula to obtain any first one angle of the triangle. After finding the first angle you can use either sine rule or cosine rule to find the other two angles.
As for the area, he used the sine rule for calculation but he would as well use the half perimeter rule since we have all the sides of triangle.
Half perimeter rule as I call it = {√s(s-a)(s-b)(s-c)} ; where √ = square root symbol, s = half the perimeter of the triangle, a,b,c are sides of the triangle and perimeter of the triangle=a+b+c.

[@ChansaRichard-ry1hi]

Keep it up sir

[@ChrisWisdom]

It's because it's an angle

[@SamKiplangat-nt5kk]

Thanks to you Sir..,

[@fatormaamadu345]

Absolutely right 👍

[@OkelloFred-jt6ge]

Sir why is that you use sine not when finding short distance

[@MonicaTapula]

Very good sir

[@user-qp3fc5ll7t]

Thanks a lot sir

[@uyosakala4880]

Thanks for your kindness sir

[@BritahFodens-dh3fx]

Is that the general formula of finding the height

[@MohammedBusharaInusah-ct4ue]

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[@ErastusHainane]

Thank you sir God bless you

[@LightonChilingile-is6gf]

That's nice

[@mercysakala-wl9kx]

What if you've been given 2sides with no angles in side it's cosine rule

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[@PrudenceMush]

Please can you even teach form there topics

[@mumbo56]

We also need a Saprophytic nutrition 🙏🙏

[@user-iq1xr6fq4y]

Thank you so much sir😊

[@user-ew8rr7pn7j]

Thanks you sir

[@BritahFodens-dh3fx]

Sir why are you using cos instead of sin

[@BensonToyitoyi-qj7uu]

I love it 💚💛👍👏

[@JosephSemba]

Sir how do you answer if you have just been given two sides without any angle

[@JosephSemba]

And requested to answer the missing side 🙏

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Nice

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[@LovelyChurros-fq5xh]

Thank you sir ❤

[@user-ds7ly5nr8r]

Please sir what if we round up the figure rather than writing in the long form

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When do you teach biology?

[@user-yp6ol1dg1j]

Why did you put squared for the shortest distance