Interactive macro-enabled MS-Excel spreadsheet. Contents: Prove the angle subtended by the diameter is a right angle. Prove the angle at the centre is twice that at circumference. Prove the opposite angles of cyclic quadrilateral sum to 180°. Prove the angle in the alternate segment is equal.
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This resource doesn't actually work. The macros are not present and as the whole resource is based in excel using macros, it is unusable.
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£1.00