Area of any Triangle using Sine | Grade 7 Maths Series | GCSE Maths Tutor

A video revising the techniques and strategies for working out the area of any triangle using sine and in reverse! (Higher only).

This video is part of the Pythagoras & Trigonometry module in GCSE maths, see my other videos below to continue with the series.

Revision Videos:

Pythagoras and Trigonometry Series:

These are the calculators that I recommend:

🔹 Watch the video
🔹 Make notes
🔹 Practice the questions
🔹 Mark your work
🔹 Review what you have learnt on the exam questions

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[techtosterone]

Goated! This guy is out here 4 years later, still saving many peoples gcse maths

[jameschester]

Saving my maths gcse one video at a time 🤩 Great video again thank you!!!!

[iTheWinN]

I'm in year 10 and haven't learnt this yet, but I understand so much of it, appreciate your time sir 🤙

[idrk]

You always link a lot of videos under each each video, thank you! 💕💕

[hi-pgbp]

thank u so much i’d be lost without this guy

[mbass]

Hi sir, I need your advice really bad so basically I trying to aim for a high grade for maths but I’m not getting higher than a high 6 - what would your advice be - my teacher said just keep attempting to do practice questions and paper but do you have any personal advice in which can help me to implement that and improve my grade faster since I want to do alevel maths and further maths next year and need a high grade - I really love maths but I struggle with it since I’m not naturally gifted at it you see, like going through each topic helps but how can I attempt to the harder questions at the back of the paper and word problems as that’s my weakness - especially topics like probability, ratio etc

[themastereal]

10:15 not squared, your working out a length

[valentinamontero]

How do you know what rule to use in what triangle. As far as I know we have 3 rules for these type of triangles which are; sine/ cosine or this rule, so how do you know whether or not this rule in applicable to all triangles? Would I be able to just apply this rule to every single triangle including the ones where you need to use the sine/cosine rule? Thank you.

[BossBoss-wxmx]

Can you please do some questions on grade 9 probability and how to figure out what the paper is asking for? Thanks 😊

[raman]

For the last question, why couldn't you have used the cosine rule to find the side AD as you'll still have an angle in between two adjacent sides? I did that but got an answer of 136cm squared which was different

[MsXJ-hhow]

Hi, does any1 know where I can access the worksheets accompanying each video. I can’t seem to find them and by the way, sir you are AMAZING 🥳👌!
I’ve learnt so much and I love your exam questions application.

[MAN]

At 20:53, why is angle 49degrees the 'C' for the equation and not angle 64?

[anime-zxld]

Lol I'm a year 7 this is good I am studying to be an engineer I fully understand the area but not getting the side lengths thank you for this amazing vidio

[nothingtoseehere]

Nice video, just a question on the advanced information )edexcel) it says area of a triangle for non-calculator paper 1 and since this is a calculator topic what sort of questions could come up?

[mbass]

And btw where is your Instagram - have you deleted it and why?

[bigwizard]

at 20:33, is there any reason C is the 49 degree angle and not the 64 degree angle? Thank you

[QuandaleRizzler]

At 26:17 can someone tell me how he labels the triangle, because I dont understand how he knows that 26.32 is C and 100 is B, ect.

[lightningd-pad]

my face when i somehow got the last one right...😅 If I can do that in the exam Im actually gonna be in shock

[lucia]

21:24, when you did the rounding for 8.91015... why did u round it to 8.9101 instead of 8.9102 if there's a 5 aft it