There is a colored paper in the shape of a rhombus that fits inside a circle with a radius of 10 centimeters (cm). Find the area of the rhombus drawn by connecting the middles of all four sides of this piece of colored paper.
10 10 [OP_MUL]
var_a = 10
var_b = 10
var_c = var_a * var_b
print(int(var_c))