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20. Pythagoras’ theorem and trigonometry

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1 20. Pythagoras’ theorem and trigonometry

2 Pythagoras’ theorem learning objectives:
understand, recall and use Pythagoras’ theorem in 2-D, then in 3-D problems (20.1, 20.2, 29.1) calculate he length of a line segment in a 2-D plane (20.3) give an answer in the use of Pythagoras’ Theorem as √ (25.4) calculate the length of a diagonal of a cuboid (29.1) Reference Material 10 Ticks: MEP:

3 Trigonometry learning objectives:
recall and use the trigonometric ratios to solve 2-D and 3-D problems (20.4, 20.5, 29.1, 29.2, 29.9) find the angles of elevation and depression (20.5) understand the language of planes, and recognise the diagonals of a cuboid (29.2) find the angle between a line and a plane (but not the angle between two planes or between two skew line) (29.2) Reference Material 10 Ticks: MEP:

4 Your turn


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