Calculate trigonometric ratios for 0°, 45° and 90°
Lesson 3 / 14
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Lesson outcome
I can calculate trigonometric ratios for 0°, 45° and 90°.
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The trigonometric ratios for 45° can be calculated using a square
The square should have lengths of 1 unit
By splitting the square into two right-angled triangles, you can calculate the ratio
The ratios for 0° and 90° can be reasoned
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