Question 1019955
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A triangular walking course encloses a plot of land. It has 2 sides of 320 feet and 400 feet, and the angle 
between these sides measure 39 degrees.Find the area of the enclosed plot of land to the nearest square feet.
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The area of the triangle is equals half the product of measures of its two sides by the sine of the angle between them.


See the lesson <A HREF=http://www.algebra.com/algebra/homework/Surface-area/Formulas-for-area-of-a-triangle.lesson>Formulas for area of a triangle</A> in this site.


So, in you case, S = {{{1/2}}}.{{{320*400*sin(39^o)}}} = . . . (?)


Please calculate it yourself.