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Example: What is the area of this triangle? Height = h = 12. Base = b = 20. Area = ½ × b × h = ½ × 20 × 12 = 120 - read more

A circle is a simple shape in Euclidean geometry. It is the set of all points in a plane that are at a given distance from a given point, the centre ; equivalently it ... - read more

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