Area of an Oblique Triangle - SAS & SSS - Heron's Formula, Trigonometry

This trigonometry video tutorial explains how to find the area of an oblique triangle. You should use heron's formula for SSS triangles where you are given all 3 sides of the triangle. You should use the sines formula to find the area of a SAS triangle where you are given two sides and the angle between the two sides.

Solving Trig Equations - Finding All Solutions:

Solving Trig Equations With Multiple Angles:

Solving Trig Equations With Double Angles:

Law of Sines:

More Examples - Law of Sines:

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The Height of a Triangle - Heron's Formula:

Law of Cosines:

Polar Coordinates:

Polar Equations to Rectangular Equations:

Rectangular Equations to Polar Equations:

How To Graph Polar Equations:

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Complex Numbers - De Moivre's Theorem:

Dot Product of Two Vectors:

Trigonometry Final Exam Review:

Final Exams and Video Playlists:

Full-Length Videos and Worksheets:

Trigonometry Formula Sheet:

[georgesadler]

MR. Organic Chemistry Tutor, thank you for calculating the Area of a Triangle using Heron's Formula. These videos are fun.

[abhidoop]

Sir you said in previous video that for SAS triangles we can use law of cosines??? Would the answer be same by both methods because I'm not getting the right answer by law of cosines method

[ifutureman]

Is there a video on how to solve the following type of problem? "A triangle has area = 12964. Find the measure of the angle formed by sides measuring 225 and 139. (There are two answers)" My math professor sucks and doesn't teach us half the stuff he quizzes and tests us on.

I love your videos.

[MinecraftMobWars]

But using Pythagorean Theorem, the Area is 12. How does that work? 3^2+b^2=5^2, b=4, 4*6=24, 24/2=12

[Noone_]

Question, Did you divide the I half to get the five? or it's the way it is? I'm very confused, Also Thank you

[thethingsthatarereal]

Hello i know this is a mathematics video but I have a question about phsyics and I have an exam tomorrow, if u could plss reply it would be much appreciated. So, how do I get the maximum height if the only given are "a body projected ar 24.5m/s 60° above the horizontal" ?

[thatomofolo]

ABC triangle shouldn't be a right triangle 📐