Answer:
the answer is 13.5
Step-by-step explanation:
A=105
B=4
C=7
so you just plug in using the trigonometric formula for area which in this case would be
1/2(4)(7)sin(105)
then you just type that into a graphing calculator (make sure its set to degrees) then you get 13.52 which would be 13.5 rounded.
