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Last updated 18 September 2013, created 06 September 2013, viewed 1,598

Spreadsheet for either MS Excel 98-2003 or MS Excel 2007-2013. Requires macros to be enabled. Part of the Trinity Maths programme. Investigate the sides of a right-angled triangle using Trigonometry. Investigate the angles of a right-angled triangle using Trigonometry. Use the function buttons on a More…calculator to evaluate Trigonometric ratios. Find unknown sides in right-angled triangles using Trigonometry. Find unknown angles in right-angled triangles using Trigonometry. Use Trigonometry and Pythagoras to find angles in 3-D shapes.

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Brilliant :-)