The discussion revolves around a triangle with two equal legs measuring 96 inches and an included angle of 104.5 degrees. Participants are exploring methods to determine the length of the third leg.
Several approaches have been proposed, including the cosine rule and geometric division of the triangle. Some participants are questioning their calculations and expressing uncertainty about why certain methods did not yield expected results. There is no explicit consensus on the correct approach yet.
Participants mention issues with calculations and the need for clarification on the application of the law of cosines. There is a noted discrepancy between calculated and expected values.
willem2 said:How about the cosine rule?
http://en.wikipedia.org/wiki/Law_of_cosines
works for unequal legs as well.
DaveC426913 said:Draw a line down the centre. Now you have two right-angled triangles. It should be a piece of cake from there.
CocoonOHorror said:when i tried this i got 1.17545571, but the answer should be 1.5.
C^2=(.96)^2+(.96)^2-2(.96)(.96)(-.25038)