Asked by christopher
Two vertical poles 20m and 30m high are 60m apart.A rope is to be attached from the top of one pole to a point on the ground halfway between the poles and then to the top of the other pole.How long a rope is needed?
Answers
Answered by
Damon
one triangle is 20 by 30
the other is 30 by 30
sqrt(30^2+30^2) + sqrt(20^2+30^2)
the other is 30 by 30
sqrt(30^2+30^2) + sqrt(20^2+30^2)
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