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Posted by on Sunday, April 7, 2013 at 12:10pm.

in triangle DEF,<D=50 degree, DE=14 meters, and DF=10 meters. find the area of triangle DEFto the nearest tenth of a square meters

  • 11th grade math - , Sunday, April 7, 2013 at 1:07pm

    If you have trig as a resource, then the altitude h from F to DE is

    h = 10 sin 50° = 7.66

    Then, the area a = 14*h

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