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H.N.C maths trigonometry 1

Posted on 2010-08-31
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A 4.2m long ladder is placed against a perpendicular pylon with its foot 60cm from the pylon.
1.1.
Determine how far up the pylon the ladder reaches
1.2.
Calculate how far the top of the ladder rises when the foot of the ladder is moved 20cm towards the pylon
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Question by:soleman2010
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aburr earned 500 total points
ID: 33569851
We are not allowed to do homework problems here but we can point you in the correct way
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Have you drawn a diagram of the problem and labled it? This is usually the first step to take. Just putting the info on paper helps.
This is really not a trig problem, but a geometry one. I presume you know geometry, in particular how to work with right angle triangles. Correct?
Both parts use the same method
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