Points A, B and C are collinear. The distance between points A and B is 20 cm, between points B and

Points A, B and C are collinear. The distance between points A and B is 20 cm, between points B and C – 5 cm Find the distance between points A and C.

Let’s find how much is the distance between A and C if between A and B is 20 cm, and between B and C 5. The solution to this is approximately very simple, there are two options for solving this approximately, but we will solve it in a very easy way, this is an equation.

We rewrite the data what needs to be found and what is already there.

Given:

AB = 20 cm

BC = 5 cm

Find:

AC =?

Solution:

AC = AB + BC

Substituting numbers instead of letters

AC = 20cm + 5cm

AC = 25 (cm)

Answer: The distance between A and C = 25 cm.