The edge of the floor of the regular triangular prism is a. The slant side gamma one side of which is against the floor edge a and the other side which crosses the point M, forms the angle alfa. The point M divides the edge of the side as 3:5, beginning from the bottom floor. Declare and calculate the area of the slant gamma and the relation of the parts of the prism.
alfa = 30 degrees
a = 10 cm