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A 12m ladder leaning up against a wall makes a 50 degree angle with the ground. How far up the wall does the ladder reach?

 Mar 3, 2017
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This describes a right triangle with the ladder (12m) being the hypotenuse.

 

sin 50 = reach/ 12       sin(50) x 12 = reach

sin(50)*12 = 9.1925 m

 Mar 3, 2017

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