Question 403821
If a triangle has sides a,b and the angle between the two sides is {{{theta}}}, then


{{{Area = a*b*sin(theta)/2}}}


Here, we have two congruent sides of 12, and the angle in between is 42 degrees. Thus,


{{{Area = 12*12*sin(42)/2 = 72 sin (42)}}} = 48.177... = 48.