MaffsGuru doesn't record just any maths videos. They’re clear, engaging, and designed to help you actually understand — not just memorise and hope for the best..
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Triangle angle sum
About Lesson
This video looks at how to find the missing angles from any triangle using nothing but some basic maths and a calculator (or your brain!). We look at all the different types of triangles there are and the fact that, no matter what they look like, they all have 180 degrees inside of them.
We use this rule to find the missing angles without the use of a protractor. I then make things a little more complicated by adding straight lines into the diagrams! This is funky but uses another rule that angles on a straight line add to 180 degrees.
With lots of examples, I finish by looking at FUZX! If you don't know what that means, then watch the video. It's an awesome area of Mathematics!!!
So much fun had sitting in front of a camera. I hope you enjoy the video. Let me know what you think by leaving a comment below.
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