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Published byAnnabella Brumit Modified about 1 year ago

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Angles in Circles Angles on the circumference Angles from a diameter Angles at the centre & the circumference Cyclic quadrilaterals Tangents

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Angles on the circumference Angles on the circumference from opposite ends of a chord are the same

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Angles from a diameter Angles on the circumference from opposite ends of a diameter are 90 °

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Angles at the centre & the circumference Angles on the circumference from opposite ends of a chord are half of the angle at the centre (from the same chord)

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Cyclic quadrilaterals Opposite angles of a quadrilateral on the circumference total 180 °

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Tangents The angle between a tangent and a radius (where the tangent touches the circle) is 90 °

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