Chapters

Introduction

Triangle angle sum

Polygons, solids and transformations

Year 7

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.

Published: Oct. 28, 2018

Length: 24 mins and 40 seconds

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Video tags

sum of angles of triangle is 180 proof
sum of angles on a straight line
triangle angle sum
triangle angles
FUZX
alternate angles in maths
alternate angles on parallel lines
alternate angles examples
Year 7 Maths
angles on a straight line
angles on a straight line add up to
angles questions
angles questions and answers
angles in a triangle

LEGAL STUFF

Where videos relate to VCE and I have used VCAA questions the following should be noted:

VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at www.vcaa.vic.edu.au