This ancient device was a predecessor of the modern calculating machine and is still widely used in Japan and China. It consists of a set of beads on rods with each rod denoting place value. Name this instrument. Escher B. Jean Wourier C. Norbert Weiner D. Leonhard Euler E. Bertrand Russell 10. Euclid Ancient Axioms Name the Greek who said these things.
All right angles are equal to one another.
A finite line segment can be extended to a line of any length. A. Pat Carroll B. Lewis Carroll C. Leo G. Carroll D. Diahann Carroll E. Madeline Carroll 12. 360-degree circle E. Pythagorean theorem 14. E Special Numbers Ancient Greeks said a natural number is perfect if the sum of all its divisors except itself equals the number. A. Ptolemy B. Aristotle C. George Boole D. Sir Francis Bacon E. Nikolai Lobachevski 17.