If sides A and B of a triangle have lengths of 3 and 5 respectively, and the angle between them is $(pi)/4$ , then what is the area of the triangle?

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Answer 1 · 2015-12-07T15:25:32

Area=15/2 $sqrt(2)$

Area of a triangle when 2 sides are given with the angle included b/w them is given by:

area=1/2#(a*b*sinC)#
        = 1/2(5*3*#1/sqrt(2))#

If sides A and B of a triangle have lengths of 3 and 5 respectively, and the angle between them is (pi)/4(pi)/4, then what is the area of the triangle?