How To Calculate The Missing Angle In a Triangle

This trigonometry video tutorial explains how to calculate the missing angle in a triangle. Examples include the use of trigonometric ratios such as sine, cosine, and tangent using the acronym SOH CAH TOA. Other examples include the use of law of sines and the law of cosines.

Basic Trigonometry:

Law of Sines:

Law of Cosines:

Angle of Elevation Problems:

Evaluating Trig Functions Given a Point:

Exact Value of 5 Remaining Trig Functions:

Evaluate Trig Functions Using Reference Angles:

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How To Graph Trig Functions:

How To Graph Sine and Cosine:

Evaluating Inverse Trig Functions:

Finding The Missing Side of a Triangle:

Two Triangle Trigonometry Problems:

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Bearings Vs Direction - Word Problems:

Bearing Problems and Navigation:

Two Triangle Problems - More Examples:

Trigonometry Final Exam Review:

Final Exams and Video Playlists:

[clickit]

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[tubeblack]

Your pace is excellent. Not too fast, not too slow. Many people producing math videos drag it out so much that it makes it impossible to watch.

[BIG-qned]

I’m all done with math in school, finished calc last year, but this is still helping me in a project I’m doing on my own at home! This is the single most useful channel I have ever come across!

[mohammedabubakr]

Daaamn bro bad luck i just had an exam and needed something like this!


Feels bad

[katherinebrilowski]

Not me in 12th grade looking this up because I didn’t know my calculator was in radian mode, not degree mode. Couldn’t figure out why I wasn’t calculating right lmao

[pkmath]

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[rabinfernandes]

I finished my science 15 years back .. and forgot everything... this was really helpful for doing some carpentry work today.... thanks a lot

[DelScully]

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[Anthony-eyvo]

Can solve my problems in 14min or less, but a teacher takes 1hr to just have me lost and confused

[t_gaming]

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[exapiccodm]

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[doogiemoster]

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[lucianoliebenberg]

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[chelbel]

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[lillyteague]

this literally helped me so much. didn't understand when my teacher taught it in class.

[KYS]

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[lougeehjaniella]

U made geometry easy. Explains very well and clear

[isabellefleszar]

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[timon]

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[gavinbunch]

the first 1 1/2 minutes explained how to do it better than my math teacher could in 45 minutes