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$a=\\var{a[0]}$

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$x=\\var{x[0]}^\\circ$

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$c=$ [[0]]

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Finding the lengths and angles within a right-angled triangle using: pythagoras theorem, SOHCAHTOA and principle of angles adding up to 180 degrees.

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Using the right-angled triangle pictured below (not to scale), find the specified side lengths or angles using trigonometry and the given values.

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Give your answer to two decimal places.

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 $\\cos{60^\\circ} = 0.50$,   $\\cos{30^\\circ} = 0.866$,   $\\cos{45^\\circ} = 0.707$

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