Segments

   S1   Given line segments a and b. Construct line segment
x = a + b
   S2   Given line segments a and b. Construct line segment
x = a - b
   S3   Given a line segment a. Construct line segment x = ma, where m is a natural number. In this example, m = 4
   S4   Divide a line segment into n congruent parts. In this example, n = 4
   S5   Given a line segment AB = a. Construct line segment x = (m/n)a, where m and n are natural numbers. In this example, x = (3/4)a
   S6   Given a line segments a, b and c. Construct a line segment x = ab/c
   S7   Given line segments a and b, construct line segment
   S8   Given line segments a and b, construct line segment
   S9   Given line segments a and b, construct line segment
   S10   Divide a line segment internally in ratio a : b
   S11   Divide a line segment externally in ratio a : b
   S12   Divide a line segment internally in the golden ratio
   S13   Divide a line segment externally in the golden ratio
   S14   Given a line segment a. Construct line segment
   S15   Given a line segment a. Construct line segment
   S16   Given a line segment a. Construct line segment
   S17   Given a line segment a. Construct line segment
   S18   Given a line segment a. Construct line segment