Question

Точка c делит отрезок АВ на два отрезка.Как найти длину отрезка АБ, если известны длины отрезков АС и СВ?

Answer 1

АВ=АС+СВ 
как бы я не вижу здесь ничего сложного. Если даны части этого отрезка,то понятно ,надо сложить их и получишь длину всего отрезка.

Answer 2

Finding the Length of Segment AB when the Lengths of Segments AC and CB are Known

To find the length of segment AB when the lengths of segments AC and CB are known, you can use the concept of proportionality.

Let's assume that the length of segment AC is represented by x and the length of segment CB is represented by y. We want to find the length of segment AB.

According to the concept of proportionality, if two segments are divided by a point, the ratio of the lengths of the segments on one side of the point is equal to the ratio of the lengths of the segments on the other side of the point.

In this case, we can set up the following proportion:

AC/AB = CB/AB

To find the length of segment AB, we can cross-multiply and solve for AB:

AC * AB = CB * AB

AB = (AC * CB) / AB

Therefore, the length of segment AB is equal to the product of the lengths of segments AC and CB, divided by the length of segment AB.

Please note that this formula assumes that the point C divides the segment AB into two segments in a straight line. If the point C is not on the line segment AB, this formula may not be applicable.

I hope this helps! Let me know if you have any further questions.