size(600,600);

float scoopSize = width / 3.0;

arc(0.5*width, scoopSize, scoopSize, scoopSize, PI, 2*PI);

triangle(0.5*width - 0.5*scoopSize, scoopSize,
         0.5*width + 0.5*scoopSize, scoopSize,
         0.5*width, 3*scoopSize);