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Similarity factor in perimeter, area and volume: Task
Extra exercises on the similarity factor in:
- lengths (circumference);
- surface;
- contents.
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Space Geometry and Pythagorean Theorem: Task
In this task on space figures, students must sketch the exercises and use the Pythagorean theorem to solve the exercise.
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Solving Arbitrary Triangles: Trigonometry
Step-by-step plan to solve arbitrary triangles using the congruence characteristics and formulas of trigonometry (sine rule, cosine rule).
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Trigonometry in arbitrary triangles: Overview formulas
Overview of the trigonometric formulas in an arbitrary triangle with angles A, B, C
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Formulas from trigonometry: Schematic presentation
An overview of the following formulas from trigonometry:
- tangent,
- main formula,
- sum-difference formulas.
To be used when simplifying or proving identities.
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Trigonometric numbers of special angles: Presentation
Trigonometric numbers of special angles: 0°, 30°, 45°, 60° and 90°.
Construction of a mnemonic tool based on a presentation.
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Related Angles: Work Bundle
An overview of the theory of the following related angles:
- equal angles;
- opposite angles;
- supplementary angles;
- anti-supplementary angles;
- complementary angles;
- anticomplementary angles.
After this you can also practice for each part.The completed …
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digitaler-stuhlkreis.de
Website on which questions are projected for a speaking exercise or topics to discuss. At the top you can click on different categories. Ideal for a conversation class, for example.
The tool is available in German, English, Spanish, Turkish, ...
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Transformation formula cosine rule: Theory
Trigonometry of arbitrary triangles.
Transformation formula cosine rule, from the formula to calculate the side is derived the formula to calculate the angle.
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Fundamental formula of trigonometry: Theory
Derivation of the basic formula of trigonometry in right triangles.
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Solving right triangles: Exercises
Problems and examples of solving right triangles (trigonometry).
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Trigonometry of right triangles: Worksheet
Trigonometry of right triangles.
Summary of the formulas in a right triangle.Includes some issues.
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