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amistre64 Group TitleBest ResponseYou've already chosen the best response.1
first off, what is the law of sines tell us?
 2 years ago

pablobegins Group TitleBest ResponseYou've already chosen the best response.0
that a/sinA is equal to b/sinB equal to c/sinC
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
right, but i dont see how that would help us in this problem; we only know one angle and one distance ....
 2 years ago

pablobegins Group TitleBest ResponseYou've already chosen the best response.0
what would we use?
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
id use a tangent myself; but i might see a way for the law of sines to work out ... if need be
 2 years ago

pablobegins Group TitleBest ResponseYou've already chosen the best response.0
104tan(72)?
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
the angle on the other side of the river is 90 minus the angle on this side: 90a and we know the distance on this side as: l sin(90a) sin(a)  =  l w w = l sin(a)/sin(90a)
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
tan(a) = w/l l tan(a) = w yeah
 2 years ago

amistre64 Group TitleBest ResponseYou've already chosen the best response.1
the tangent method is much simpler by far
 2 years ago

pablobegins Group TitleBest ResponseYou've already chosen the best response.0
thank you! you might wanna see my other questions that i'll post in a bit they're all related to trig
 2 years ago
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