sin ⁡ 45 ° = 1 2
cos ⁡ 45 ° = 1 2
tan ⁡ 45 ° = 1
20140301_Trade-151_0124-copy.jpg
20140301_Trade-151_0124-copy.jpg
20140301_Trade-151_0124-copy.jpg
20140301_Trade-151_0124-copy.jpg
20140301_Trade-151_0124-copy.jpg
20140301_Trade-151_0124-copy.jpg
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Trigonometric Ratios of 30 Degrees angle