Answer the following questions based on Euclid’s common notions.
a. (i) State Euclid’s first common notion.
b. (ii) Provide one numerical example (using lengths or numbers) that illustrates this common notion.
c. (iii) Three line segments AB, CD and EF are such that AB=CD and CD=EF. Write a paragraph-style deductive proof to show that AB=EF.