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Polygons, solids and transformations

Essential Mathematics (Year 7)

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Lesson notes

There are currently no lesson notes at this time to download. I add new content every week.

Chapters

Introduction

Description

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.

Video tags

quadrilateral angle sum
angle sum of a quadrilateral
degrees in a quadrilateral
degrees in a polygon
quadrilaterals
quadrilaterals geometry
quadrilateral shapes
Year 7 Maths
convex angles
concave angles
non-convex angles
awesome maths video
maths made easy
angles in a polygon
angles in a quadrilateral
angles in a quadrilateral add up to 360