See our page on Angles for more information. The shape illustrated here is an irregular pentagon, a five-sided polygon with different internal angles and line lengths (see our page on Polygons for more about these shapes).ĭegrees ° are a measure of rotation, and define the size of the angle between two sides.Īngles are commonly marked in geometry using a segment of a circle (an arc), unless they are a right angle when they are ‘squared off’. Angle marks are indicated in green in the example here. Understanding Statistical Distributions.Area, Surface Area and Volume Reference Sheet.Simple Transformations of 2-Dimensional Shapes.Polar, Cylindrical and Spherical Coordinates.Introduction to Cartesian Coordinate Systems.Introduction to Geometry: Points, Lines and Planes.Percentage Change | Increase and Decrease.Mental Arithmetic – Basic Mental Maths Hacks.Ordering Mathematical Operations - BODMAS.Common Mathematical Symbols and Terminology.Special Numbers and Mathematical Concepts. How Good Are Your Numeracy Skills? Numeracy Quiz.
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