We have just proved that AC = 1/2 AB.
Euclid's axioms tell us that wholes are equal when equals are added to equals.
Show that AC = 1/2 AB if a point C is located between two points A and B such that AC = BC. Draw the figure to explain.
Given: AC = BC
Adding AC on both sides, we get
⇒ AC + AC = BC + AC (BC + AC coincides with AB)
⇒ 2 AC = AB
⇒ AC = 1/2 AB
Question
If a point C lies between two points A and B such that AC = BC, then prove that AC = 1/2 AB. Explain by drawing the figure.