Midpoints

// Calculate midpoints of the three sides
double xL = (x0+x1)/2.0; 
double yL = (y0+y1)/2.0;

double xR = (x1+x2)/2.0; 
double yR = (y1+y2)/2.0;

double xB = (x0+x2)/2.0; 
double yB = (y0+y2)/2.0;

QUESTION 5:

There are three solid blue triangles in the figure. Could each of them be drawn as three smaller triangles?