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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.
This is one of the shortest videos I have had the pleasure of recording as it's just showing how each of the different quadrilaterals looks. I list properties of each quadrilateral and discuss how we can tell them apart. I finish the video by looking at what it means to be convex and non-convex.
So you want to know how many degrees are in a quadrilateral? Why didn't you ask?! Oh ... you were wondering why we called it the quadrilateral angle sum? Well, maths is a big fat trick! We love to use language which confuses you. I'm here to make sure that you understand that stupid language. I open the video by looking at angles in a triangle being 180 degrees and how we can use that to find the number of degrees in any polygon. Using this information we see that the angles in a quadrilateral add to 360 degrees. Using this fact we look at lots of examples which have quadrilaterals including convex and non-convex. I had so much fun! Hope you enjoyed the video.
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These are the videos which are available in each chapter. You will notice that some are free and some are for subscribers only. Making and hosting these videos costs a little bit of money. To help pay for the hosting fees I have no choice but to hide some of the videos and make them for subscribers only.