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posted by lola on Monday, January 16, 2012 at 2:05pm.

Using scissors to cut a rectangular piece of paper from one corner ro the opposite corner. The cut is 36 cm long and makes a 34 degree angle to the uncut edge. How many cm long is the paper (from the corner where he started the cut?

sin34 = y/36 y = 36sin34 = appr 20.13 cos34 = x/36 x = 36cos34 = appr. 29.85 the paper was 20.13 cm by 29.85 cm check: 20.13^2 + 29.85^2 = 1296.23 36^2 = 1296 , good enough using 2 decimals

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