Question

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Answer 1

$a) \\Cos 30 = \frac{x}{10} \\ \frac{\sqrt{3} }{2} = \frac{x}{10}\\ 2x = 10\sqrt{3}\\ x = \frac{10\sqrt{3} }{2} \\ x = 5\sqrt{3}$

$b) \\Cos 45 = \frac{x}{10} \\ \frac{\sqrt{2} }{2} = \frac{x}{10}\\ 2x = 10\sqrt{2}\\ x = \frac{10\sqrt{2} }{2} \\ x = 5\sqrt{2}$

$c) \\Sen 37 = \frac{x}{10} \\0,6018 = \frac{x}{10} \\x = 10 . 0,6018\\x = 6,018$

$d) \\Sen 30 = \frac{x}{10} \\\frac{1}{10} = \frac{x}{10} \\2x = 10\\x = \frac{10}{2} \\x = 5$

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