Posted by Kelvin on Saturday, March 24, 2012 at 1:25am.
Find the area of a triangle with sides of length 5 and 8 and included angle 74°. (Round your answer to one decimal place.)

precalc  Melek, Sunday, March 25, 2012 at 12:29am
A=1/2absin
A=1/2(8)(5)sin(74)
20sin(74)
=19.2