The Maths Prof: The Cosine Rule
8:17
YouTubeThe Maths Prof
The Maths Prof: The Cosine Rule
In this lesson I show you how to use The Cosine Rule to find the LENGTH of a side in a triangle and then, an ANGLE. If you want to skip ahead to finding an ANGLE go to 5:15 Another lesson to follow soon with some more difficult examples! I hope you find the lesson useful! Subscribe to my YouTube channel to stay up to date with new uploads and ...
27.6K viewsFeb 25, 2021
Understanding Cosine Rule: A Beginners Guide
Cosine Rule & When to Use Them
13:22
Cosine Rule & When to Use Them
YouTubeO-Level Mathematics
2.3K viewsDec 20, 2018
Law of Cosines, Finding Angles & Sides, SSS & SAS Triangles - Trigonometry
10:18
Law of Cosines, Finding Angles & Sides, SSS & SAS Triangles - Trigonometry
YouTubeThe Organic Chemistry Tutor
1.7M viewsOct 22, 2017
Law of Cosines - Formula, Examples & Proof - [2-20-4]
36:51
Law of Cosines - Formula, Examples & Proof - [2-20-4]
YouTubeMath and Science
66.1K viewsJul 28, 2022
Shorts
Cosine Rule Explained for Trigonometry | Math Tutorial
3:18
174.1K views
Cosine Rule Explained for Trigonometry | Math Tutorial
calvinceonlinemath
COSINE Rule to find an ANGLE #trigonometry #maths #trig #revision #gcse
0:57
12.8K views
COSINE Rule to find an ANGLE #trigonometry #maths #trig #revision #gcse
Lets Do Maths
Top videos
The Cosine Rule - GCSE Higher Maths
10:37
The Cosine Rule - GCSE Higher Maths
YouTube1st Class Maths
748.9K viewsNov 4, 2023
Trigonometry: Cosine Rule
15:01
Trigonometry: Cosine Rule
YouTubeSecondarySTEM
9.3K viewsSep 4, 2023
Cosine rule - Corbettmaths
5:07
Cosine rule - Corbettmaths
YouTubecorbettmaths
220.7K viewsApr 4, 2013
Solving Triangles Using Cosine Rule
Law of Cosines Applications
4:15
Law of Cosines Applications
YouTubeMr. Kyle Phillips Problem
2.6K viewsDec 9, 2021
Cosine Rule Proof (Derivation)
4:56
Cosine Rule Proof (Derivation)
YouTubeSimple Science and Maths -
4.1K viewsMay 5, 2020
Solving Triangles Using Law of Sines and Law of Cosines
6:23
Solving Triangles Using Law of Sines and Law of Cosines
YouTubeMario's Math Tutoring
66.1K viewsFeb 1, 2021
The Cosine Rule - GCSE Higher Maths
10:37
The Cosine Rule - GCSE Higher Maths
748.9K viewsNov 4, 2023
YouTube1st Class Maths
Trigonometry: Cosine Rule
15:01
Trigonometry: Cosine Rule
9.3K viewsSep 4, 2023
YouTubeSecondarySTEM
Cosine rule - Corbettmaths
5:07
Cosine rule - Corbettmaths
220.7K viewsApr 4, 2013
YouTubecorbettmaths
The Cosine Rule | Grade 7 Maths Revision | GCSE Maths Tutor
34:12
The Cosine Rule | Grade 7 Maths Revision | GCSE Maths Tutor
157.2K viewsJan 31, 2020
YouTubeThe GCSE Maths Tutor
Proof of the Cosine Rule | GCSE Maths | Mr Mathematics
4:09
Proof of the Cosine Rule | GCSE Maths | Mr Mathematics
84.7K viewsJan 12, 2013
YouTubeJonathan Robinson
Cosine rule
5:09
Cosine rule
25.9K viewsMar 19, 2023
YouTubeGraphicMaths
Cosine Rule Explained | Trigonometry
10:43
Cosine Rule Explained | Trigonometry
14.6K viewsMay 6, 2025
YouTubeMath AgentX
8:36
IGCSE & GCSE Maths - The Cosine Rule
699 viewsJan 21, 2021
YouTubeAce Maths
8:10
Proof of the Cosine Rule
114.7K viewsSep 21, 2020
YouTubeMathsByAli
18:11
The Cosine Rule
161.4K viewsApr 28, 2020
YouTubeMaths Genie
7:50
Cosine Rule - Finding Angles - Trigonometry
560 viewsJan 17, 2022
YouTubeLets Do Maths
0:55
Trigonometry Basics: Cosine Rule Explained Simply!
99 views10 months ago
YouTubeAce Scorers
6:36
Cosine Rule Finding a Side - VividMath.com
168.8K viewsJun 16, 2012
YouTubeVividMath
9:54
The Cosine Rule
504 viewsAug 15, 2022
YouTubeMathsican
5:28
The Cosine Rule Explained Solve ANY Triangle (Sides, Angles & Bearings) (Episode 13/15)
42 views4 months ago
YouTubeMaths Advice On Your Device
5:47
Cos Rule grade 11: Introduction
360.4K viewsMay 13, 2021
YouTubeKevinmathscience
5:38
Cos Rule grade 11: Practice
288.8K viewsMay 13, 2021
YouTubeKevinmathscience
2:52
Sine Or Cosine Rule? | Trigonometry | Maths | FuseSchool
425.3K viewsMar 8, 2017
YouTubeFuseSchool - Global Education
10:01
Trigonometry (Sine/Cosine Rule)
104K viewsJun 20, 2021
YouTubeJacob Sichamba Online Math
14:05
What is the Law of Cosines? The Cosine Rule EXPLAINED
2.3K viewsMay 22, 2023
YouTubeLike a Math Class
6:28
Trigonometry, The Cosine Rule, G12 ECZ
3.4K viewsJul 17, 2024
YouTubeGCSE Mathematics Zone
10:27
Cosine Rule Explained | O Level Mathematics 4024 | Trigonometry Tutorial
294 viewsMar 9, 2025
YouTubeMathswithmurad
6:34
Edexcel AS Level Maths: 9.1 The Cosine Rule
27.7K viewsFeb 15, 2024
YouTubeZeeshan Zamurred
6:03
Understanding the Cosine Rule in Trigonometry
115.6K views8 months ago
TikTokvoodookings_sa
13:24
The Cosine Rule (1 of 3: Proof of the Formula)
89.6K viewsSep 28, 2015
YouTubeEddie Woo
2:20
Understanding the Cosine Rule in Triangle Calculations
19.4K views11 months ago
TikTokmrxmathsandscience
10:53
The Cosine Rule (2 of 2: Examples of finding sides & angles)
10.7K viewsMar 4, 2017
YouTubeEddie Woo
4:12
The cosine rule
3.4K viewsJan 27, 2021
YouTubeWhiteboard Maths
9:07
The Cosine Rule
2.3K viewsNov 2, 2022
YouTubeCsecmath tutor
See more

Short videos

3:18
Cosine Rule Explained for Trigonometry | Math Tutorial
174.1K viewsNov 3, 2023
TikTokcalvinceonlinemath
0:57
COSINE Rule to find an ANGLE #trigonometry #maths #trig #revision #gcse
12.8K viewsMar 9, 2023
YouTubeLets Do Maths
2:04
How to use the amazing cosine rule.  #maths #trigonometry #triangles
1.3K views3 months ago
YouTubeEngineerItWithMJL
6:03
Understanding the Cosine Rule in Trigonometry
115.6K views8 months ago
TikTokvoodookings_sa
6:32
Understanding the Cosine Rule in Trigonometry
13.7K views8 months ago
TikTokvoodookings_sa
0:55
Trigonometry Basics: Cosine Rule Explained Simply!
99 views10 months ago
YouTubeAce Scorers
1:35
Cosine Rule
16 views8 months ago
YouTubeStep up Maths
1:33
Cosine Rule Explained: Find Any Angle (Geometry)
125 views10 months ago
YouTubeAce Scorers
1:03
Cosine Rule | A Geometric Proof #math #mathematics #mathproof #trigonometry
99 views2 months ago
YouTubeAnimathions | Visual Math
0:54
How to Find an Angle Using Cosine Rule #maths #trigonometry #cosineRule
358 views2 months ago
YouTubexsquared
2:31
Area of Triangle and Cosine Rule #maths #gcse #surds #triangle #cosine
933 views3 months ago
YouTubeCountOnWells
0:09
What is cosine rule?
38 views2 months ago
YouTubeStudy Higher Mathematics
2:29
The Cosine Rule Finding the Angle: Part 1
192 views3 months ago
YouTubeHoang Maths
0:46
Using the Cosine Rule in Triangle Calculations
398.6K viewsMar 26, 2025
TikTokrubix_learning
2:20
Understanding the Cosine Rule in Triangle Calculations
19.4K views11 months ago
TikTokmrxmathsandscience
1:29
Finally understand the cos rule. Handy for triangles. #maths #engineering
1K views5 months ago
YouTubeEngineerItWithMJL
0:59
Cosine rule Examples GCSE Maths #maths
143 views8 months ago
YouTubeMP Maths Solutions
0:45
Cosine Rule Trigonometry #gcsemaths #maths #trigonometry #cosinerule
380 viewsFeb 26, 2025
YouTubeGCSE Maths Pro
4:14
How to Find Side of a Triangle with Cosine Rule in Trigonometry
146.2K viewsApr 30, 2024
TikTokjj.online.maths.c
2:04
The very handy cos rule. #engineering #trigonometry
1.4K views5 months ago
YouTubeEngineerItWithMJL