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Lines, shapes and solids

Essential Mathematics (Year 8)

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This video looks at what a quadrilateral is! I know .. you have been doing this for years, but there is new learning to be had. What is a convex and non-convex quadrilateral? What are the different types of quadrilateral? What is the angle sum of a quadrilateral? All these questions (and more!) are answered in this video. There are lots of worked examples all explained in the simplest way.

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